Error in Dev Console. Pease help...

I have the following error in the dev console on my live site when filling out the registration form on my site (https://www.georgianbaysportsclub.com/registration) .

Uncaught (in promise) TypeError: Illegal invocation
    at P (eval at evaluateBundle (evaluateBundle.js:188), <anonymous>:3:13756)
    at g (eval at evaluateBundle (evaluateBundle.js:188), <anonymous>:3:15392)
    at Object.get text [as text] (eval at evaluateBundle (evaluateBundle.js:188), <anonymous>:3:15755)
    at Object.keys.reduce.c.value.c.get.d.get [as text] (eval at evaluateBundle (evaluateBundle.js:188), <anonymous>:3:41469)
    at v (by75g.js:621)
    at by75g.js:254
    at c (runtime.js:45)
    at Generator._invoke (runtime.js:274)
    at Generator.forEach.e.<computed> [as next] (runtime.js:97)
    at i (by75g.js:1)

This form has been working fine and I can’t think of any changes that have been made to the code since the time it was working, so I don’t know why it is no longer working.

Any help would be appreciated!