Domino V10.0.1 – Symmetrical cluster configuration… May the journey continue

This week I migrated a Domino 9 environment to new Operating Systems, migrated them to V10.0.1 and everything ran fine.

Today I tried to activate the new feature “Symmetrical Cluster” and ran into another problem. Of course I also did this little customization ( https://bit.ly/2H52biZ ) but when trying to start the “RepairCleanup” task I received the following error message on the server console:

lo RepairCleanup

OSGetModuleHandle failed
Repair Cleanup started
Repair Cleanup shutdown

Any idea what´s causing this error message ?? I already opened a case and hopefully will receive a quick solution.