Brad –
I don’t know if you ever got an answer on this, but I’m guessing your setup is running PHP 7.x? If so, you can try out the following if you’re up for a little manual PHP hacking:
In line 718 of the file wp-content/plugins/pixproof/features/metaboxes/init.php, change:
count( $meta_box['pages'] === 1 )
to:
count( $meta_box['pages'] ) === 1
Note the moving of the closing parenthesis for the count() call. Honestly, the original code looks like a bug to me.
I accept no responsibility for what happens should you try this — I’m just another user like you — but it seems to work for me so far (at least it quit throwing that error).
Vince
