Hi @Jirem,
The error above says you are missing the package,
This is the reason why the UAT stack dumped and crashed.
I also see you are still referencing the old 4.26 project code from a build on 7th July 2022 and not been rebuilt on the 13th of July.
Maybe Some of the blueprints code has not been converted to version UE5.
LogInit: Display: LogUObjectGlobals: Warning: [AssetLog] C:\Users\Admin\Documents\LSGit426-Clean\Content\LostSector\Enemies\Crawler\Animationen\Soran\Root\Crawler_Heavy_Attack_Hit_Execute.uasset: Failed to load ‘/Game/LostSector/BP/ANS/Enemies/ANS_AI_NO_Rotate’: Can’t find file.
LogInit: Display: LogLinker: Warning: VerifyImport: Failed to load package for import object ‘Package /Game/LostSector/BP/ANS/Enemies/ANS_AI_NO_Rotate’