404 when editing header or footer

If you see a 404 error when you try to edit the header or footer, follow these steps to reset the permalinks:

1. Login to the dashboard
2. In the left navigation, hover over Settings
3. Select Permalinks
4. Select Save Changes
5. Hover over Settings again
6. Select Beaver Builder 
7. Select Tools
8. Select Clear Cache

This will reset the permalinks and clear the cache, and the 404 error should be resolved.