Bel
(@belimperial)
Hello @tomtomjen
Thank you for reaching out!
We are sorry to hear that you are having that error.
Please, could you make sure your Popup Maker plugin is updated to its latest version? As we need to eliminate this as a potential cause of any occurring error. Additionally, I can’t reproduce this issue in my test environment. Could you please send us a message at https://wppopupmaker.com/support/ and include the system info and error log under the Popup Maker > Tools. This will help us evaluate the issue you are encountering.
That said, based on the line of code that you have included, it seems your site is currently in localhost. If that’s the case then I would suggest you check out this guide and see if it gives you anything useful to go on: Checking JavaScript Errors
Hope that helps. If your issue is resolved please take a moment to rate and review the plugin.
If you still need help please message us directly at https://wppopupmaker.com/support/