Thanks for reaching out and thanks for using Cobalt theme with BoldGrid Post and Page Builder for WordPress!
From the look of your error message it seems the site is trying to pull an image file from the database that no longer exist. You can contact InMotion Support and have them to remove this file completely
home/codegi5/public_html/wp-includes/media.php on line 1676 and it should resolve your issue.
I think you’re actually getting the error message because you have
WP_debug switched on. InMotion should be able to help you remove that from your cPanel as well.
I hope this helps! Please reach back out if you have any other questions for us.