I am having an issue where I have created a new list with a large number of columns (over 250) and have just created a new "New Form", initially with around 20 fields, however when trying to load the form by clicking the New Item button the forms seems to begin to load correctly and then instead of finishing rendering I get a red bar with the message "An error has occured. Please check the browser console (F12). when checking the console I get the errors as per the below image: -
I have reset the form and the standard OOB forms work fine, I then created a new form with just one field and again the same issue occurs.
If I create a new test list and just add a couple of columns and then create a form on that one it seems to work fine. I need help on this please.