Fatal error: Call to a member function on a non-object in /home/...../admin/_blogs_list.php on line 35

I did delete a blog and renumbered the new one...

I got this while updating a previous post.
The update went well, only this error occured.

if( ! $current_User->check_perm( 'blog_properties', 'any', false, $curr_blog_ID ) )

I did execute this :

DELETE evo_bloggroups 
FROM `evo_bloggroups` LEFT JOIN evo_blogs ON blog_ID = bloggroup_blog_ID 
WHERE blog_ID IS NULL