My editor is suddenly broken by Popup Maker
After Popup Maker Version Update, Refresh Browser Cache
CTRL/CMD+SHIFT+F5 buttons at the same time to hard refresh the browser cache. This bypasses any saved file settings and content in the browser, and refreshes a web page with updated settings and content.
If you are using a content delivery network (CDN) (for example, Cloudflare) to serve your site files and database, please flush that cache as well to ensure that the latest plugin assets are served to yourself & your visitors.