Hello,
I used Debian 8 before and I changed my vps operation system to ubuntu 18.04
after I restore the database and uploaded the files all was alright
I entered to admin panel, but after that Something is broken in som links fx. performance and installed modules
and it show
Oops! An Error Occurred
The server returned a "500 Internal Server Error".
Something is broken. Please let us know what you were doing when this error occurred. We will fix it as soon as possible. Sorry for any inconvenience caused.
I deleted cache from var/cache but that did not help
I use PHP Version 7.2.15-0ubuntu0.18.04.2
What can I do
A video showing the problem inserted in attachment
When i active define('_PS_MODE_DEV_', false); there is no problem with all links