Http error 500

Hello, im getting http error 500 on my webproject. The project is uploaded in a folder into ht folder. I see the folder and as soon as i click i get the error. The first time i clicked on the folder it showed my webproject… Is it possible that something is wrong with htaccess files. Or that, since i recenty edited some files, it isn’t uploaded yet?

heres the htaccess from the folder i uploaded

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^$ index.php [L]
RewriteRule ^([a-zA-Z0-9]+)?$ user-profile.php?user_username=$1 [NC,L]

Please search the support resources first next time, as this is a very commonly asked question: https://infinityfree.net/support/search/?q=Http+error+500