Article ID: 3485, created on Dec 11, 2007, last review on May 10, 2014

  • Applies to:
  • Plesk 8.2 for Linux/Unix


After time/date adjustment on the Server-> System Time page in Plesk CP, access to Plesk is blocked with the following license error:

Error: The license key is invalid. In order to use the control panel, please, obtain and install a new fully featured license key. Your license key has expired. To continue using your control panel, purchase a non-expiring commercial license.


Clock adjustment settings on the Server -> System Time page show the year as YYYY+1, where YYYY is the current year. So, if the Plesk admin user wants to change only the minutes or timezone of the server, he has to change the year setting also, and if he does not, then the license will be reported as expired because the data on the server is set to the following year.


Check the data on the server using the "date" command. If you find that the current time is set to next year, please the change the system time on the server with this command:

# date --set='-1 year'

This problem will be fixed in future Plesk versions.

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