Hi Kaveri,
Caused by: com.mendix.systemwideinterfaces.MendixRuntimeException: com.mendix.storage.FileNotFoundInStorageException: LocalFileSystemStore:: File does not exist for key: 0
It's look like the file you are attaching does not exist. Have you tried debugging to see if the file is present? or if you try with restore data from accp then maybe file id empty try with new file storing again.
Hope it helps!
Thanks & Regards,
Manikandan K