The first serios error is: "2014-09-18T22:19:43.921+02:00 [01024 warning 'Default'] ERROR: Vmount library: Error 1450 while error communicating with the driver" and the error 1450 means "Insufficient system resources exist to complete the requested service." all the following errors are consequence including 1016 and 50 etc.
Once the conversion is completed try to 'configure' only destination VM, this could solve the problem.
HTH