The entity with ObjectTypeCode = 80 was not found in the MetadataCache. MetadataCacheDetails: ProviderType=Dynamic, StandardCache=True, IsLoadedInStagedContext = False, Timestamp=14233886, MinActiveRowVersion=14233886, MetadataInstanceId=37072683
I tried checking entity with ObjectTypeCode = 80 in metadata using api, but couldn't find any enity.
Judging from your description, I guess that an app in this solution quoted some entities or fields that were not selected. You can try to remove some apps in this solution, and then check if the problem still exists.I saw a post which may be a bit similar to your situation:
A change in the core platform has introduced this behavior impacting Power Apps checker, specific to export of model-driven app components. To mitigate this issue, you can assign the Environment Maker security role to the Power Apps Checker Application user record in your environment.