When I go back and make an editing change to an old post, I get the following error message:
Warning: in_array() [function.in-array]: Wrong datatype for second argument in /home/peoriapu/public_html/blogpeoria/wp-content/plugins/redirect-old-slugs.php on line 79
Warning: Cannot modify header information - headers already sent by (output started at /home/peoriapu/public_html/blogpeoria/wp-content/plugins/redirect-old-slugs.php:79) in /home/peoriapu/public_html/blogpeoria/wp-includes/pluggable-functions.php on line 272
When I check the post, the changes appear. So no harm, no foul. But this error message disturbs me. An idea what's causing it, as I don't want to do away with the "redirect old slugs" plugin.
