The game should work fine on all normal, official PAL/NTSC revisions of the NES, we made sure to test it thoroughly on all of them.
Quick troubleshooting:
(1) Please make sure all console contacts of the cartridge slot are clean and unbent.
(2) Please make sure that the cartridge is running in the correct PAL/NTSC mode. You can adjust the mode by pressing reset quickly five times while the console is turned on with the cartridge inserted.
If neither of that is the issue, could you email our support with a detailed report when and how the freeze occurs and what exact mod has been applied to your console?
support@firstpressgames.com
Since it is a modded console, we unfortunately cannot promise the fuctionality, but we can look into the issue with our manufacturer if we get more details and maybe solve it. Same goes for clone and emulation consoles.