WebPortal crashes after update to 8.2

After the update from 8.1.5 to 8.2 the WebPortal application pool loops crashing then stops.

And I have a 503 error on Portal.
If I restart the application pool, errors come back then it stops again.

I found this event and I think it's related to error

Faulting application name: w3wp.exe, version: 10.0.14393.0, time stamp: 0x57899b8a
Faulting module name: PerfMon64.dll, version: 8.0.11057.0, time stamp: 0x5f65478b
Exception code: 0xc0000409
Fault offset: 0x000000000013f68f
Faulting process id: 0x1490
Faulting application start time: 0x01d837c52c104b15
Faulting application path: c:\windows\system32\inetsrv\w3wp.exe
Faulting module path: C:\Program Files\Microsoft Monitoring Agent\Agent\APMDOTNETAgent\V8.0.10918.0\PerfMon64.dll
Report Id: ac7e5df0-c345-4b5d-b28a-d0ddd6aac241
Faulting package full name: 
Faulting package-relative application ID: 

There is any way to fix that?

Thanks