Error -77124 when trying to use contour move

I am trying to move my motors using contour move ExpressVI. Unfortunately, it gives an error code of -77124. On opening the ExpressVI, I found the problem to be with the invoke node which starts the motor. The same error also prevents the "Find reference" ExpresVI from functioning.

I always end my coordinate move, and I can't figure out why only at this particular case is my resource still active? And is stop the only way to end a motion resource?