Beyond Compare 4 prompts an error "This authorization key has been revoked"

Error message:

This authorization key has been revoked.

Solution:

Just delete all files in the following directories.

C:\Users\Administrator\AppData\Roaming\Scooter Software\Beyond Compare 4

In some special cases, the path cannot be found, so search for Beyond Compare 4 directly on the C drive. Delete all files in this directory.