IIS application pool turned off with event id 5009

I'm developing a website. It's an MVC5 web application, using the .NET Framework 4.6.2.

We have a compilation server running on Windows Server 2016, it has installed vsbuild tools 2017.

The compiled site works perfectly in my environment, in the testing environment and also in a clean installed windows vm, but in the production environment the first request to the site returns a 503 error code and the application pool turns off automatically. I've checked the event viewer and there is an event there with ID 5009: a process serving application pool x suffered a fatal communication error with the windows process activation service.

The problem doesn't reproduce with the compiled site in any other environment

Also if I compile the site in release using my own Visual Studio 2017 the problem doesn't reproduce in production environment neither.

Any suggestions?

Adding some information: I've captured a crashdump with DebugDiag2, this is what I think it's the relevant part of the log:

EXCEPTION DETAILS  

DetailID = 1
Count:    10
Exception #:  0XE06D7363
Stack: [NO STACK HERE]        

DetailID = 2
Count:    1
Type:     System.String
Message:  NOT_FOUND
Type:     NOT_FOUND
Message:  NOT_FOUND
Stack: [LONG STACK HERE]

DetailID = 3
Count:    1
Exception #:  0XC0000409
Stack: [NO STACK HERE]       

EXCEPTION SUMMARY

10 | 0XE06D7363  

1  | System.String

1  | 0XC0000409    

I also requested the dump analysis from the tool, here is the summary:

In dumpfilename.dmp the assembly instruction at PerfMon!_invoke_watson+e in C:\Program Files\Microsoft Monitoring Agent\Agent\APMDOTNETAgent\V8.0.10918.0\PerfMon.dll from Microsoft Corp. has caused an unknown exception (0xc0000409) on thread 10

And also, in the first section of the dump analysis I found something really odd: It says: Operating system = Windows Server 2012 (which is right), Processor Type: X86 (which looks weird for me because as far as I know there is no Win2012 for x86)

I don't even know where to start =(