Codewplcs Hello! After updating with PHP 8.0, I get an error 500. Switching on PHP 7.4, my website is back. Something is strange because with PHP 80 it works only in wp-admin. I think the error is from SSL. On Cloudflare, I have the option "FULL" SSL.
portofacil It's more likely a plugin/theme issue. Take a look at the domain error log, you'll probably find clues that lead to the culprit.