Issue ERROR: Call to undefined function demo_version() (restart_services.php:19)

[VasilisZ]

I upgrade my plesk installation from 12.5 to onyx.
Since then when i am trying to resart services i get the message ERROR: Call to undefined function demo_version() (restart_services.php:19)

 

[IgorG]

Try to fix it with

# plesk repair installation

 

[Igor Losev]

Services Management feature was reworked in Onyx and there is no restart_services.php in it. Is your upgrade finished successfully?

 

[VasilisZ]

after the plesk repair installation command , i got no issues to restart services, but i have an error at log file that says : Errors occurred while performing the following actions: upgrade Plesk business logic.