Not able to save my organisation data

Hello all.

I have installed Dolibarr (ver. 14.0.3) and i am not able to modify, resp. to save my Organisation.
I can choice any country, but no one country will be saved.

EDIT: American Samoa and some other countries were saved, but i need Czech republic instead of it (

Can someone help me.

thx in advance

Jirka