I got permission so much problems after installing.
storage/logs
storage/framework/sessions
storage/framework/views
storage/framework/cache
I already gave 777 to these folders, which one needs this more?
I can't install modules because of permission problems.
Thank you for help!
UPDATE:
I've reinstalled my server with Webmin+Virtualmin and used Automatic Installation and it looks fine now.
UPDATE2:
Unfortunately Automatic Installation updates PHP7 to 8 and GameAP become unstable, so I reinstalled everything and did a manual install. Now it looks fine!