askvortsov DursunCan Based on the composer output, this seems to have worked. Are you still getting a 500 error on opening the site, and is it still the command namespace one?
askvortsov DursunCan Hmm... It might be stored in the webserver log. Check the apache/nginx error log, that should have a bit more info.
DursunCan askvortsov Which file should I look for? Files were not opened with nano. https://prnt.sc/10sqxbe
DursunCan I ran the composer update command. I forgot to enter parameters. composer update --prefer-dist --no-plugins --no-dev -a --with-all-dependencies