PC-24 Captain reported multiple system failures required discontinuing the flight and maintenance action.

Narrative

1 single Computer Processor failure cascaded into a multi failure event which was not supposed to happen. 'AIOP (Actuator Input/Output. Processor module) 1A FAIL'. After assessing the indication we saw on our displays we found: loss of all navigation capability including the conventional VOR and ILS function. The Map screen stayed frozen in its last position. Both Autopilots failed. Mach Trim Fails and limited the speed to a top of 0.71. Yaw Trim failed but still seemed to be working ok. FMS1 fail and though no indication for FMS 2 was shown but did not give us any information but a working synthetic vision on the Co-Pilot side. Both FADEC failed but engine output seemed normal.There were a few more failures that may have contributed to the issue but mainly I believe the 'AIOP' Failure; meaning the indicator for an internal hardware/software failure leading to loss of multiple redundancies. This was now confirmed by the Maintenance Technician and a new Processor is being installed.This single-point failure should not be possible in a single pilot certified aircraft.A RVSM unreliability report is being file as well.No emergencies were declared but the flight was discontinued because of the lack of navigation ability.