Buttons on plesk web interface not working after upgrade to 12.5

[abonasir]

We have plesk installed on our windows dedicated server 2008.
Buttons on plesk control panel web interface not working after upgrade to 12.5

in firefox console giving this
TypeError: Smb.Dropdown is not a constructor

new Smb.Dropdown({

all installation upgrades was fine and completed successfully without any errors.

Please immediate help needed. Thanks

 

[IgorG]

Usually it is related to not successfully completed upgrade when some packages from new and previous Plesk version are duplicated.
You can try to fix it with repair utility (plesk repair installation)
Contact Plesk Support Team if not help.