Jquery error in console

Created a form on my main page and used shortcode to display. However there is this error displaying in my browser console.

Uncaught TypeError: url.indexOf is not a function
at jQuery.fn.load (jquery.js?ver=3.6.0:10363:13)
at script_rm_front.js?ver=5.1.6.9:477:16

It is pointing to the the current script in this folder:

/wp-content/plugins/custom-registration-form-builder-with-submission-manager/public/js/script_rm_front.js?ver=5.1.6.9

The form on the frontend works fine as it should though. Any idea what is causing this console error?
Thanks in advance