SymptomsWhen trying to integrate Customer and Business Manager (CBM) with Parallels Plesk Panel (PP) for the first time or to reconfigure PP/CBM integration as per one of these articles:
For versions 10.3 and later: 111707 How to repair Parallels Panel integration with Customer and Business Manager module
For versions below 10.3: 11204 How to repair integration with Customers & Business Manager
I receive this error:
Failed to find XML nodes by XPath 'get_protos/result' relative of 'head'
CauseThe error indicates that the /usr/local/psa/admin/htdocs/enterprise/control/agent.php file is missing, likely because it was removed in response to a known vulnerability.
ResolutionThe solution is to replace the file using the steps described in the same article:
113313 [FIX] Remote vulnerability in Plesk on Linux