The following error message popped up in my WordPress Blog using the Atahualpa Theme when clicking on Images:
Catchable fatal error: Object of class WP_Error could not be converted to string in /wp-content/themes/atahualpa/functions/bfa_postinfo.php on line 308
I don’t know how to solve that problem but I found out that it was caused by the following setting:
Design/Atahualpa Theme Options/Edit Post/Page Info Items
KICKER SINGLE POST PAGES:
I entered as suggested „%category-linked%“, then the error appeared. To fix it I went back to only „%category%“.