Blank screen on login

I tried to add the Module builder to my Dolibarr installation, and now no-one with Admin rights can get anything on the screen.
The TOP menu bar appears but nothing else.
Any suggestions?

Hello,

Have a look to your hosting logs to get the error

Hosted locally.
Normal user can log in fine.
Group permissions page shows ADMIN group has ZERO permissions!
Which I guess is why there is no content on the page.

Gained access to database and removed ADMIN from user and can now see things, but no SETUP access.

To have setup acces, the user must have the admin flag set to 1 (field admin into table llx_user)

As sson as the ADmin flag is set, the user loses visible access.
Upon logging in, the top blue menu bar is visible but NOTHING else.
Worst part, this happened after installing the Module Builder module from the dolistore.
It has clearly broken something major.

The module builder is not an external module on dolistore. It is a core module. About which dolistore module are you speaking ?
If you have top menu and rest empty it means you have a fatal error happening when falg admin is set. Surely the external module you add.
Take a look into the apache error log file to get info on what is the file that generate the fatal error

Just checked
It was the Advanced module Builder from the store ‘module_damb-1.0.7’

Does your dolibarr version was <= 14.0 ?
You can try to remove the directory custom/damb.

Dolibarr version 16.0.2 Runnung on debian

found this log in /var/log/apache2/error.log

Wed Nov 23 11:40:59.983715 2022] [mpm_prefork:notice] [pid 20649] AH00163: Apache/2.4.52 (Ubuntu) configured – resuming normal operations
[Wed Nov 23 11:40:59.983781 2022] [core:notice] [pid 20649] AH00094: Command line: ‘/usr/sbin/apache2’
[Wed Nov 23 12:17:13.317919 2022] [mpm_prefork:notice] [pid 20649] AH00171: Graceful restart requested, doing restart
AH00558: apache2: Could not reliably determine the server’s fully qualified domain name, using 127.0.1.1. Set the ‘ServerName’ directive globally to suppress this message
[Wed Nov 23 12:17:13.359190 2022] [mpm_prefork:notice] [pid 20649] AH00163: Apache/2.4.52 (Ubuntu) configured – resuming normal operations
[Wed Nov 23 12:17:13.359211 2022] [core:notice] [pid 20649] AH00094: Command line: ‘/usr/sbin/apache2’
[Wed Nov 23 12:17:49.087323 2022] [mpm_prefork:notice] [pid 20649] AH00171: Graceful restart requested, doing restart
AH00558: apache2: Could not reliably determine the server’s fully qualified domain name, using 127.0.1.1. Set the ‘ServerName’ directive globally to suppress this message
[Wed Nov 23 12:17:49.123088 2022] [mpm_prefork:notice] [pid 20649] AH00163: Apache/2.4.52 (Ubuntu) configured – resuming normal operations
[Wed Nov 23 12:17:49.123105 2022] [core:notice] [pid 20649] AH00094: Command line: ‘/usr/sbin/apache2’
[Wed Nov 23 12:18:01.715018 2022] [php:warn] [pid 26461] [client 10.20.30.123:15435] PHP Warning: Undefined variable $dolibarr_main_data_root in /usr/share/dolibarr/htdocs/filefunc.inc.php on line 141
[Wed Nov 23 12:18:01.715054 2022] [php:warn] [pid 26461] [client 10.20.30.123:15435] PHP Warning: Undefined variable $dolibarr_main_url_root in /usr/share/dolibarr/htdocs/filefunc.inc.php on line 142
[Wed Nov 23 12:18:01.715137 2022] [php:warn] [pid 26461] [client 10.20.30.123:15435] PHP Warning: Undefined variable $dolibarr_main_document_root in /usr/share/dolibarr/htdocs/filefunc.inc.php on line 144
[Wed Nov 23 12:22:40.334896 2022] [mpm_prefork:notice] [pid 20649] AH00170: caught SIGWINCH, shutting down gracefully
[Wed Nov 23 12:24:28.390847 2022] [mpm_prefork:notice] [pid 729] AH00163: Apache/2.4.52 (Ubuntu) configured – resuming normal operations
[Wed Nov 23 12:24:28.456205 2022] [core:notice] [pid 729] AH00094: Command line: ‘/usr/sbin/apache2’
[Wed Nov 23 12:24:29.125402 2022] [php:warn] [pid 793] [client 10.20.30.123:52135] PHP Warning: Undefined variable $dolibarr_main_data_root in /usr/share/dolibarr/htdocs/filefunc.inc.php on line 141
[Wed Nov 23 12:24:29.125449 2022] [php:warn] [pid 793] [client 10.20.30.123:52135] PHP Warning: Undefined variable $dolibarr_main_url_root in /usr/share/dolibarr/htdocs/filefunc.inc.php on line 142
[Wed Nov 23 12:24:29.125518 2022] [php:warn] [pid 793] [client 10.20.30.123:52135] PHP Warning: Undefined variable $dolibarr_main_document_root in /usr/share/dolibarr/htdocs/filefunc.inc.php on line 144
[Wed Nov 23 12:26:28.065127 2022] [php:warn] [pid 844] [client 10.20.30.123:52200] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339
[Wed Nov 23 12:26:28.493219 2022] [php:warn] [pid 793] [client 10.20.30.123:52206] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/
[Wed Nov 23 12:26:28.674401 2022] [php:warn] [pid 793] [client 10.20.30.123:52206] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/
[Wed Nov 23 12:26:29.087416 2022] [php:warn] [pid 797] [client 10.20.30.123:52205] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/
[Wed Nov 23 12:26:40.948112 2022] [php:warn] [pid 832] [client 10.20.30.123:52227] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/
[Wed Nov 23 12:26:41.034595 2022] [php:warn] [pid 832] [client 10.20.30.123:52227] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/
[Wed Nov 23 12:26:42.225361 2022] [php:warn] [pid 832] [client 10.20.30.123:52227] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/index.php?mainmenu=home
[Wed Nov 23 12:26:42.230896 2022] [php:warn] [pid 832] [client 10.20.30.123:52227] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/index.php?mainmenu=home
[Wed Nov 23 12:26:42.242830 2022] [php:warn] [pid 794] [client 10.20.30.123:52228] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/index.php?mainmenu=home
[Wed Nov 23 12:27:01.085254 2022] [php:warn] [pid 845] [client 10.20.30.123:52231] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/
[Wed Nov 23 12:27:01.112219 2022] [php:warn] [pid 845] [client 10.20.30.123:52231] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/
[Wed Nov 23 12:27:02.161680 2022] [php:warn] [pid 845] [client 10.20.30.123:52231] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/index.php?mainmenu=home
[Wed Nov 23 12:27:02.167281 2022] [php:warn] [pid 845] [client 10.20.30.123:52231] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/index.php?mainmenu=home
[Wed Nov 23 12:27:11.601542 2022] [php:warn] [pid 851] [client 10.20.30.123:52233] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339
[Wed Nov 23 12:27:11.678939 2022] [php:warn] [pid 851] [client 10.20.30.123:52233] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/
[Wed Nov 23 12:27:11.684426 2022] [php:warn] [pid 851] [client 10.20.30.123:52233] PHP Warning: Undefined property: stdClass::$SYSLOG_LEVEL in /usr/share/dolibarr/htdocs/core/db/mysqli.class.php on line 339, referer: http://10.20.30.80/dolibarr/
[Wed Nov 23 12:52:31.761980 2022] [php:warn] [pid 797] [client 10.20.30.123:4170] PHP Warning: Undefined property: stdClass::$MAIN_IHM_PARAMS_REV in /usr/share/dolibarr/htdocs/admin/modules.php on line 249, referer: http://10.20.30.80/dolibarr/admin/modules.php?mainmenu=home
[Wed Nov 23 12:59:21.399235 2022] [php:warn] [pid 796] [client 10.20.30.123:4306] PHP Warning: Undefined array key “title” in /usr/share/dolibarr/htdocs/opensurvey/wizard/create_survey.php on line 139, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/index.php?idmenu=33&mainmenu=tools&leftmenu=
[Wed Nov 23 12:59:21.399285 2022] [php:warn] [pid 796] [client 10.20.30.123:4306] PHP Warning: Undefined array key “title” in /usr/share/dolibarr/htdocs/opensurvey/wizard/create_survey.php on line 140, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/index.php?idmenu=33&mainmenu=tools&leftmenu=
[Wed Nov 23 12:59:21.399355 2022] [php:warn] [pid 796] [client 10.20.30.123:4306] PHP Warning: Undefined array key “description” in /usr/share/dolibarr/htdocs/opensurvey/wizard/create_survey.php on line 146, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/index.php?idmenu=33&mainmenu=tools&leftmenu=
[Wed Nov 23 12:59:21.399592 2022] [php:warn] [pid 796] [client 10.20.30.123:4306] PHP Warning: Undefined variable $champdatefin in /usr/share/dolibarr/htdocs/opensurvey/wizard/create_survey.php on line 153, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/index.php?idmenu=33&mainmenu=tools&leftmenu=
[Wed Nov 23 12:59:21.400432 2022] [php:warn] [pid 796] [client 10.20.30.123:4306] PHP Warning: Undefined array key “mailsonde” in /usr/share/dolibarr/htdocs/opensurvey/wizard/create_survey.php on line 169, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/index.php?idmenu=33&mainmenu=tools&leftmenu=
[Wed Nov 23 12:59:21.400473 2022] [php:warn] [pid 796] [client 10.20.30.123:4306] PHP Warning: Undefined array key “allow_comments” in /usr/share/dolibarr/htdocs/opensurvey/wizard/create_survey.php on line 175, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/index.php?idmenu=33&mainmenu=tools&leftmenu=
[Wed Nov 23 12:59:21.400503 2022] [php:warn] [pid 796] [client 10.20.30.123:4306] PHP Warning: Undefined variable $allow_comments in /usr/share/dolibarr/htdocs/opensurvey/wizard/create_survey.php on line 181, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/index.php?idmenu=33&mainmenu=tools&leftmenu=
[Wed Nov 23 12:59:21.400532 2022] [php:warn] [pid 796] [client 10.20.30.123:4306] PHP Warning: Undefined array key “allow_spy” in /usr/share/dolibarr/htdocs/opensurvey/wizard/create_survey.php on line 183, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/index.php?idmenu=33&mainmenu=tools&leftmenu=
[Wed Nov 23 12:59:21.400557 2022] [php:warn] [pid 796] [client 10.20.30.123:4306] PHP Warning: Undefined variable $allow_spy in /usr/share/dolibarr/htdocs/opensurvey/wizard/create_survey.php on line 189, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/index.php?idmenu=33&mainmenu=tools&leftmenu=
[Wed Nov 23 12:59:26.516254 2022] [php:warn] [pid 845] [client 10.20.30.123:4309] PHP Warning: Undefined property: stdClass::$enabled in /usr/share/dolibarr/htdocs/comm/mailing/index.php on line 103, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/create_survey.php
[Wed Nov 23 12:59:26.533284 2022] [php:warn] [pid 845] [client 10.20.30.123:4309] PHP Warning: Undefined property: Conf::$none in /usr/share/dolibarr/htdocs/comm/mailing/index.php on line 103, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/create_survey.php
[Wed Nov 23 12:59:26.533314 2022] [php:warn] [pid 845] [client 10.20.30.123:4309] PHP Warning: Attempt to read property “enabled” on null in /usr/share/dolibarr/htdocs/comm/mailing/index.php on line 103, referer: http://10.20.30.80/dolibarr/opensurvey/wizard/create_survey.php
[Wed Nov 23 13:07:34.389222 2022] [php:warn] [pid 794] [client 10.20.30.123:4424] PHP Warning: Undefined property: stdClass::$MAIN_OPTIMIZEFORTEXTBROWSER in /usr/share/dolibarr/htdocs/core/lib/usergroups.lib.php on line 1047, referer: http://10.20.30.80/dolibarr/user/perms.php?id=3&action=addrights&token=12f1fd84aae7fd0ec31e973c424514e8&entity=1&module=allmodules&confirm=yes
[Wed Nov 23 13:09:19.590978 2022] [php:warn] [pid 797] [client 10.20.30.123:4454] PHP Warning: Undefined property: stdClass::$MAIN_OPTIMIZEFORTEXTBROWSER in /usr/share/dolibarr/htdocs/core/lib/usergroups.lib.php on line 1047, referer: http://10.20.30.80/dolibarr/user/agenda_extsites.php?id=4
[Wed Nov 23 13:12:06.980961 2022] [php:warn] [pid 845] [client 10.20.30.123:4482] PHP Warning: Undefined variable $lineid in /usr/share/dolibarr/htdocs/projet/tasks/time.php on line 1071, referer: http://10.20.30.80/dolibarr/projet/index.php?mainmenu=project&leftmenu=
[Wed Nov 23 13:12:18.641236 2022] [php:warn] [pid 832] [client 10.20.30.123:4486] PHP Warning: Undefined variable $projectid in /usr/share/dolibarr/htdocs/projet/tasks.php on line 742, referer: http://10.20.30.80/dolibarr/projet/tasks/time.php?leftmenu=tasks
[Wed Nov 23 13:12:18.644025 2022] [php:warn] [pid 832] [client 10.20.30.123:4486] PHP Warning: Undefined variable $nbrows in /usr/share/dolibarr/htdocs/projet/tasks.php on line 783, referer: http://10.20.30.80/dolibarr/projet/tasks/time.php?leftmenu=tasks

I cannot find a directory ‘custom’ or ‘damb’ ??

Found the ‘damb’ directory and deleted it.
Admin appears to be back in action.
Many thanks to eldy for his help.