Ninja Form Not Loading / SyntaxError: Unexpected Token

I’m opening a new topic, however having a similar issue to what was reported here: https://generatepress.com/forums/topic/ninja-form-not-loading/

A Ninja Form Widget has been padded as a Footer Widget via customiser. It works when it is the only form on the page, but if I display another form as part of the page content (e.g., Contact page), then the ninja form footer widget keeps on trying to load. Chrome Dev Tools reports, Uncaught SyntaxError: Unexpected token <

I couldn't find any issue raised over Ninja Forms re: this, but found threads here with some reported issues. I think perhaps there is a conflict between the way Ninja Forms does things and way Generate Press does things, grid related perhaps? - rather than this necessarily being a bug.

I may just go with Contact7, but any ideas just off the top of your head as to a quick fix? Happy to edit code.

Thanks.