Backup of Database no longer functions correctly

Using my Dolibarr
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BACK UP DOESN’t FUNCTION - In the php dump of the database in version 4.0.0 this function no longer works as it did in the previous version 3.9.3 so it doesn’t create the file in any format sql / zip or tar/gz

Pièces jointes :

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picture did not upload

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Database backup FIXED