HELP!!! Plesk Panel crashed after upgrade

[Frater]

After issuing a proposed upgrade from 10.2 to 10.4 the panel has crashed.

I want to fill in the form here: https://www.parallels.com/support/plesk/free10assistance/
But I can't get it accepted because it's telling me "Invalid Plesk Build"

I already sent an email to the same address you used in a previous session.....

ERROR: Service_Agent_Exception
	
Up Level
Unable to read components configuration from the service node: sh: /opt/psa/admin/bin/packagemng: Permission denied

0: Unix.php:340
    Service_Node_Components_Unix->_syncProperties(NULL null, boolean false)
1: :
    call_user_func_array(array, array)
2: Properties.php:142
    Service_Node_Properties->sync(NULL null, boolean false)
3: Components.php:20
    Service_Node_Components->sync()
4: Properties.php:31
    Service_Node_Properties->__construct(object of type Db_Table_Row_ServiceNode)
5: ServiceNode.php:173
    Db_Table_Row_ServiceNode->components()
6: ServiceNode.php:76
    Db_Table_Row_ServiceNode->refreshProperties()
7: auth.php3:505

 

[Frater]

Still, no answer from them......

I'm afraid I will not get an answer this way.....
But I have no other option (that's why I'm trying to find out how I can get support)