@Tommyx Thank you for reaching out!
In this case, the issue where you are logged out of the web clipper when you clear your cookies/cache is expected behavior.
The reason being is that whenever you login to the web clipper it creates an authentication token that is stored in the cookies/cache.
Clearing the cookies/cache removes that authentication token. Meaning, the next time you open the web clipper you will need to login again to create another authentication token.