fatal error when login

[emarket]

dear 

i face problem when my client login to his account on my website, it give him fatal error what is the problem ?

 

[Tom Girou]

Do you know his credentials ? If yes, try to use Debug Mode and connect with his account to check the error message.

[Knowband Plugins]

We request you to kindly share your Site URL, so that we can check once and suggest some solution. Also it will be better if you share any user credentials for testing purpose.

please enable the debug mode from the directory

config/defines.inc

Change:
define('_PS_MODE_DEV_', false);

To:
define('_PS_MODE_DEV_', true);

After that if there is any error message showing on the page for that please let us know also you can check the error log directory and
share the same for the error details.

[Bernd Himmerich]

Hello, I get crazy. I cannot login into prestashop back office. I do hosting at ionos and this is curios a fatal error will be shown also the website has a new "name" and the in the folder structure such a folder occurs. The sites name is www.anneli.biz. Now it  is shown in the fault report as www.anneli.biz/ka.... see picture. And in my folder structure a folder with this name has occurred This is magic.  Need urgent help! I tried to reach prestashop in France but after an hour I left the line. No one I could contact. Thank you very much for every help.

[JBW]

Try to reset cache by renaming /var/cache to /var/cache_old