Unable to add SVNParentPath to commitmonitor

error 500 means "internal server error". So something in your server is configured wrong.

I will search for the wrong server configurations, but nevertheless commit monitor behave differently in case of this specific case, the old version fail at first and then do the correct GET, the newer simply fails.
Maybe there is some option to check when I add the a list of repository URL (SVNParentPath in apache conf) instead of a single repository URL?

V 1.11
Errors:
[dav:error] Could not fetch resource information. [-2, #0]
[dav:error] The URI does not contain the name of a repository. [405, #190001]
Access:
"OPTIONS /svn HTTP/1.1" 401 381
"OPTIONS /svn HTTP/1.1" 500 533

V 1.10
Errors:
[dav:error] Could not fetch resource information. [-2, #0]
[dav:error] The URI does not contain the name of a repository. [405, #190001]
Access:
"OPTIONS /svn HTTP/1.1" 401 381
"OPTIONS /svn HTTP/1.1" 500 533
"GET /svn/ HTTP/1.1" 401 381
"GET /svn/ HTTP/1.1" 200 955

[r1119]