I´m gettin 403 error forbidden ultra admin when aplly settings in this theme.
A 403 Forbidden error means that you do not have permission to view the requested file or resource. While sometimes this is intentional, other times it is due to misconfigured permissions. The top reasons for this error are permissions or .htaccess error.
So, to fix it you have to do the following for wordpress theme:
go to your wordpress site dashboard then settings=>permalinks and save the settings (save chnages)
If not fix from the above option then you have to contact your hosting support with details you are facing.
Otherwise the best way to get the support is Contact your purchased Item Author. How to Contact Author and let them know.