Logic Session Crashing - Plugin issue?

Hi all,

I have a deadline looming on finishing a project and it seems Logic Pro X doesn't want to open it. I'm running 10.5.0 and have been getting a message every time I open Logic lately about incompatible audio units, but I always seem to be able to make it work regardless. (Waves plugins have given me endless strife since V11, and one of them appears to be incompatible but when I select it, it still works so go figure).

Anyways, it is saying Output Arcade is crashing it now (It is only halfway through the trial) and has stopped giving me the ability to open the plugin manager when I attempt to open the session file. This is the case no matter how I try to open it (direct from Finder, through opening no session in Logic then going in through recent or through the open option in the menu etc...).

I have tried disabling core audio in Logic with no session opened. I am able to then open the session, however the plugin manager is greyed out so I can't actually go in and disable things, and when I try to enable core audio then go into plugin manager it crashes. Eeeeeek! Any ideas? I've posted the crash logic below, many thanks in advance for any assistance.

Kind regards,

Matt