What Is The Meaning And Troubleshooting For Each of These Errors
File Corrupted:
It is possible that the file in this WordPress installation or in your source WordPress installation (from where you created this file) has become corrupted and cannot be imported. Please delete this file and try again.
Plugin Issue:
The error message may look something like: Plugin named “yith-topbar-countdown” is corrupted.
It is possible that the error is in this WordPress installation or your source WordPress installation (from where you created this file). Please delete the plugin and retry.
Unknown Error (Where Both the Plugin and File could be Corrupted):
It will detect plugin issue first & display the plugin error on the UI)
The plugin named “yith-topbar-countdown” is corrupted. The error can be in this WordPress installation or in your source WordPress installation (from where you created this file), please delete this plugin and try again. Once you have done that if the file is corrupted too then the error will change and show the file corruption error discussed above. You can then delete the file and try again in that case.