Multiple Crash Reports TypeError: 'NoneType' object is not subscriptable

Checkmk raw version 2.0.0p1.

Hi all,

Recently, several crash reports have been generated with the same error exception: TypeError (‘NoneType’ object is not subscriptable).

And the attached table shows the errors reported from checkmk host:

Does anyone know the origin of the problem?
Is there a way to analyze the crash reports to find the issue?

Thanks in advance

Also, Timed Out messages are received from Check_MK services from several hosts:

Does anyone know how to analyze the crash report?
I need to confirm if the bug is related to a high number of hosts and services in raw version.
Thanks to all