In order to properly troubleshoot any errors or warnings, we advise you to check if there are any conflicts with your theme or other plugins you may have installed on your website.
Can you check the following:
1. Activate a default theme (standard Theme offered in Wordpress, Twenty Nineteen) if you find the issue you were having is not apparent with the default theme activated, the issue is associated with the theme you are using. You will need to contact the developer of the theme for assistance.
The Theme will need to be updated, or there may already be an updated version.
2. Disable all plugins. If the issue is resolved, you can enable plugins one by one to find the conflicting one.
3. If the problem is still apparent, please Submit a support tick at Extension Works.
If the problem is caused by another plugin ( not Extension Works plugin) you will need to contact the developer of the plugin.
This article is also a useful source of information for solving plugin and theme conflicts: