Why? Mediawiki is created asynchronously, according to logs we access the instance before the mediawiki tuleap.mediawiki-standalone.instance-creation is fully created, which ended in a 500 error in home page

2024-06-04T08:25:02+02:00 [3730] [info] Processing tuleap.mediawiki-standalone.instance-creation: 
...

2024-06-04T08:25:02+02:00 [3730] [debug] GET https://tuleap/mediawiki/w/rest.php/tuleap/instance/mw-standalone-1717482298774
2024-06-04T08:25:02+02:00 [3730] [debug] {"message":"Instance mw-standalone-1717482298774 does not exist","httpCode":404,"httpReason":"Not Found"}
...

175)
2024-06-04T08:25:55+02:00 [3717] [info] Project mw-standalone-1717482298774 created