Issue Error when login "Class 'pm_Config' not found"

[JavierT]

When login into plesk control panel ( in web) , we get Error 500, How could solve this?

we have Plesk Onyx 17.8.11

thanks

Server Error​

500

Error​

Class 'pm_Config' not found

---

Type	Error
Message	Class 'pm_Config' not found
File	PleskConfig.php
Line	15

 

[IgorG]

Have you tried

plesk repair all

?

 

[JavierT]

Yes, but the error continues