1.enable display-error : ON in php.ini or if you can't access php.ini, write this on very first line of mw-config/index.php
ini_set('display_errors', "On");
then reload.
2.see the error.
for me, i see something like this
ClassLoader.php at line 444 cannot access /path/to/mediawiki/vendor/composer/../liuggio/"tl;dr"/StatsdDataFactory.php
to solve this, simply copy the path you see on error and then go to that path.
you should have something called StatsdDataFactory (without file extension)
now rename and add the file extension .php
3.My unsolved error
i have a problem that says :
Fatal error: Cannot declare interface Liuggio\StatsdClient\Factory\StatsdDataFactoryInterface, because the name is already in use in C:\path\to\mediawiki\vendor\liuggio\statsd-php-client\src\Liuggio\StatsdClient\Factory\StatsdDataFactory.php on line 7
i have look at many php help website but i can't find any of it.
(i found something but it need to rewrite entire php that use Interface, and it's pretty be easy to get many error, im not good at php rn)