Deprecated: Symfony\Component\String\AbstractUnicodeString::join(): Implicitly marking parameter $lastGlue as nullable is deprecated, the explicit nullable type must be used instead in C:\Apache24\htdocs\BookStack\vendor\symfony\string\AbstractUnicodeString.php on line 203

Fatal error: Uncaught Error: Class "Symfony\Component\String\AbstractString" not found in C:\Apache24\htdocs\BookStack\vendor\symfony\string\AbstractUnicodeString.php:29 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\BookStack\vendor\symfony\string\AbstractUnicodeString.php on line 29