… I went in through cPanel and smited the entire plugin out of existence. I will reinstall, since I only had a partial form setup anyway.
Find the “File Manager” tab in cPanel and navigate to the folder described in error code (for me it was home2, then public_html, etc). From there I could have tried fixing line 210 but I decided to delete the whole plugin folder because when I fix a problem I kill it dead.
Hope this can help someone in the future! This deletes all your forms and settings though, you’ve been warned.