Hi @AK_SH27 ,
I have seen this issue is generally caused by Unreal Engine attempting to load assets that are referenced somewhere in your project but are not present in your Content folder.
To resolve this issue, you’ll need to figure out and remove/fix the references to these missing assets. Here are some steps of how I’d do it:
1. Check all references ( reference viewer)
2. Fix or remove references
3. Fix redirectors:
4. Clean and validate your Derived Data Cache (DDC)
If you still face any issues, please reply to the comment with any details.