Hello all, I’m going to share the tip to you all who get this kind of problem:
1. Enter to “Add new” a pricing table
2. If you are in Chrome, press F12 and move to “Console” tab, you’ll notice to some red texts, this exactly is the plugin/js lib of your theme which is conflict with the pricing table plugin.
3. After you figure out the conflict plugin/ conflict js lib of your theme, Try temporarily deactivating the conflict plugin, or activate the wordpress default theme if the conflict come from your theme.
4. Create and save a pricing table normally
5. Activate your conflict plugin/ conflict theme back, use the pricing table normally, and ignore the issue.
Note that this way work for almost conflict js, but it might not work for some special conflict case.
Let me know if this helped.
Thanks