Hello,
You’re using old theme version and old versions of plugins.
Please update them all. The plugins can be downloaded from this link https://www.8theme.com/download-plugins/
https://www.8theme.com/demo/docs/royal/#!/installation_upgrade (1.5 Theme Upgrade).
Don’t forget to create a back up of your files and database before update!
Thank you.
Regards,
Eva Kemp.