Yes; the crash is because of OpenCore Legacy Patcher (OCLP).
OCLP is not supported by Nitro (it’s in the App Store description). That’s because Nitro uses features of Metal that OpenCore does not properly implement. The crash you are seeing is happening because of that incompatibility. Sorry.
I do not know of a 100% reliable way of detecting OCLP; if I find one, I will try putting up an alert.