Edit: now it says
[php:error] [pid 32] [client ] PHP Fatal error: Uncaught Error: Undefined constant "Thirtybees\\Core\\Error\\_TB_BUILD_PHP_" in /var/www/html/classes/error/ErrorDescription.php:109\nStack trace:\n#0 /var/www/html/classes/error/ErrorUtils.php(43): Thirtybees\\Core\\Error\\ErrorDescriptionCore->__construct()\n#1 /var/www/html/classes/error/ErrorHandler.php(240): Thirtybees\\Core\\Error\\ErrorUtilsCore::describeError(Array)\n#2 [internal function]: Thirtybees\\Core\\Error\\ErrorHandlerCore->shutdown()\n#3 {main}\n thrown in /var/www/html/classes/error/ErrorDescription.php on line 109, referer: http://localhost/install/index.php
"POST /install/index.php HTTP/1.1" 500 321 "http://localhost/install/index.php" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36 Edg/116.0.1938.69"