I get about 30 lines of Deprecation Warnings like this:
Deprecated: Return type of ListObject::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/.../include/class.util.php on line 207
And then this:
Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in /home/.../bootstrap.php on line 19
Warning: session_cache_limiter(): Session cache limiter cannot be changed after headers have already been sent in /home/.../bootstrap.php on line 21