Hello,
I've been struggling with this same problem for hours today after upgrading to an M2 Macbook as well. After tons of trial and error, the solution that worked for me was setting my DAW to run in Rosetta mode. To do this, go to your applications folder, right click Studio One, click Get Info, and check the "Open using Rosetta" box. This should hopefully allow the plugin to run properly until Crypton updates Piapro Studio to work with the M2 macs. Piapro Studio worked just fine without any workarounds on my old Intel mac, so this is definitely a hardware related issue.