VirtualMIDISynth driver stops working intermittently

Since returning home for quarantine, a problem has arisen on my desktop PC where I get this error whenever I try to start up virtualmidisynth (see attachment at the bottom).

Problem is, reinstalling the driver as the error suggests only seems to be a temporary solution. Because it seems that on top of this, it seems that if you leave virtualmidisynth inactive long enough, it will switch back to the default GS Wavetable synth, until I restart the program manually, which gives me the same error. I find this to be rather annoying since it worked fine on my laptop without any issues. Does anyone know if there's a way to fix this?