Hello there,
This is a common conflict caused by JavaScript errors from other software interfering with the Easy Pricing Tables Menu being built.
You’ll need to search for conflicts, to see which plugin or theme is causing this to happen. To search for conflicts, please follow these steps.
1. First please deactivate all plugins except Easy Pricing Tables and see if the issue persists.
2. If the issue is resolved, reactivate your plugins one by one, testing after each to see if the issue returns.
3. If no conflict is found among your plugins, try reverting to a default WP theme like ‘TwentyEighteen’, or ‘TwentyNineteen’, and see if the issue is resolved.
Head here for detailed instructions:
https://fatcatapps.com/knowledge-base/search-for-conflicts/
If you find a conflict with a plugin or theme, let us know where we can aquire a copy so that we may inspect the issue ourselves.