Hi NetDoc,
I am in the same dead-end, I just can't understand how Plesk didn't warn about this. This is just a customer server and now I don't know what to do... I had a license key for 8.6.0 with 10 domains and now I get this nice warning:
Error: The license key is invalid. In order to use the Parallels Plesk Panel, please obtain and install a new functioning license key.
You are trying to use license key created for other version of Parallels Plesk Panel. Contact Parallels sales representatives to get the correct license key.
Your license key has expired. To continue using your Parallels Plesk Panel you must purchase a non-expiring commercial license key.
The amount of currently used resources overrides the limits defined by your license.
The number of web sites hosted on the server exceeds the limits defined by your license. You have 2 sites hosted; your license allows hosting only 1 sites.
The number of served e-mail accounts exceeds the limits defined by your license. You have 5 e-mail accounts currently served; your license allows serving only 1 e-mail accounts.
I need to get a working key like the one that was working in 8.6.0 it's not a solution to reinstall your server...
Please let me know if you got a solution.
Thanks!
Andres