Based on your comment
I re-downloaded the installation package again
stopped all instances (server+client)
re-installed the version.
Unfortunately the problem remains. Sorry!
A bugfix release...
this version number wasn't changed from the original release unfortumately.
I'll send you a debug dll when I have some spare time
Edit: do you also have a popup showing that error?
If so can you...
I can publish it in its current form, maybe someone will correct it (if there is incorrect work) or improve it.
Or I can not publish it.
If I had used it at least once, I would probably know how...