UX Builder is not responding-just says UX Builder is loading

Every time I try to click on Edit page with UX Builder, it just gets stuck at the loading phase. This did not happen over the past couple of days, it just started. Any suggestions?

Hi

Please make sure your theme and page builder plugin is uptodate. I would also recommend you please contact Item Author to get item support How to Contact your purchased Item Author and let them know. Item author will be happy to assist you.

Thanks