Show Server init failure

Hi I just wanted to check some things on our backup nanohog system for a show that will start again in some weeks. But the show file wont load. The error message says Show server init failure. I was on 3.7.1. Now i updated to 3.8.0 but it is the same error. Other shows load without problems. Only this show and all backups, even very old ones dont load. But they did back then in june.