Something strange is hapening to me when trying to do the pushback using the Maddog MD80 20th Anniversary Edition in MSFS2020. I'm attaching the error message shown on the PC screen after the faulty pushback operation. There's no way I can start and complete the pushback operation. The rest of the ground services were functionning well (GPU, Cleaning, Lavatory, Catering, Refueling, Boarding).
Any help is appreciated.