You should still be able to change it. I dont remember the specifics about when your code is saved. Can you copy your code and save it to a text file on your computer? If so, do it and click reset code on the run=disabled page. type a bit of code, (can be anything, str=“pizza”; for instance), just incase that triggers the save. Load the regular version of the page. Did it save over the code with the infinite loop?
If that worked you just need to fix your saved code and paste it back in. it might be helpful to use a site like
save frequently and even if an infinte loop gets past the loop protection, closing the frozen tab and reloading the page will bring you back to the last save.
If it didnt work I’m not sure what to do.