Modern Events Calendar Bug with Pro 6.8.1

We are getting this error on events that have tickets:
4frontend.js?ver=7.20.0:5590 Uncaught TypeError: window[(“mec_book_form_submit” + unique_id)] is not a function
at mec_book_form_submit (frontend.js?ver=7.20.0:5590:47)
at HTMLFormElement.onsubmit (kids-cake-pops-class-with-chef-ryan/:1:1)Understand this error

I have tried to manually update to MEC 7.22.0 and it continues to fail

Hello @RinardMedia,

Thanks for writing to us.

To help you with your concerns, we need to check your settings, I would request you please share the admin login details meanwhile I would suggest you troubleshoot a few of the common issues before we investigate your settings. Please share your details in a secure note. Please provide the following details

  • WordPress Login URL
  • Admin-level username and password

You can find the Secure Note button at the bottom of your posts

Thanks