Calling a controller function for a plugin controller not work

Calling a controller function for a controller from a plugin does not seem to work in vers. 3.2. While calling "Home / Index /" works fine, I get e.g. of "DevTools / MiniProfiler" or "DevTools / MachineName" error (see attachments). Is there a quick fix for that?  Or am I wrong and it works? Do you have an example for a function of a plugin controller??  SS1.jpg   100.33K   0 Anzahl Downloads  SS2.jpg   63.81K   0 Anzahl Downloads

Thanks for your quick reply. From the DevTools plugin I could see that I had to set a "plugin/" for the controller name when calling!