Hi,
I’m sorry for the inconvenience. You have upgraded the plugin from the WordPress directory, but without read the “Upgrade Notice”:
“Important note: If you are using the Professional version don’t update via the WP dashboard but using your personal update link. Contact us if you need further information: https://wordpress.dwbooster.com/support”
Please, use your download link to get and install the latest update of the Pro version of the plugin.
If you have not your download link, please contact me through the support page:
https://wordpress.dwbooster.com/support
indicating the email address used to purchase the plugin.
Best regards.