Problem instaling

Hi there,

I’ve installed this amazing plugin on my site. But when i click on the add on tab this message appears on my wp screen:

Fatal error: Cannot use object of type WP_Error as array in /srv/disk7/1854986/www/pictureperfectitineraries.co.nf/wp-content/plugins/geo-my-wp/includes/admin/geo-my-wp-addons.php on line 580

I’m kind of newbie in this. It’s for a school work project.

Can anyone tell me whats going wrong?

Why do this message appears?

How can i fix it?

Please help me. Thanks

https://wordpress.org/plugins/geo-my-wp/