Hi there,
Thank you for getting in touch with us, we do appreciate your time.
Thank you for the details and JS errors that you have provided as it is of much help. As suggested by the JS error, jQuery is not defined which is most likely a result of the correct jQuery libraries not being loaded.
With that said, please could I kindly ask if you may follow the steps shown in our documentation here: https://www.wpgmaps.com/documentation/troubleshooting/jquery-troubleshooting/
Should the above process not appear to resolve the issue, please could I kindly ask if you may provide me with your email address so that I may reach out to you and discuss how to proceed with this further (please mark your reply as private should you provide your email address)?
I hope this helps?
I look forward to hearing back from you.
Kindest Regards,
Matthew