I was facing below error in "Suggested Tags".
Warning: in_array() [function.in-array]: in XXXXX/wp-content/plugins/owa/includes/class.inputfilter.php on line 163
I thought its the OWA directory causing the issue. I removed the directory as i wasnt using it anymore.
Now, i do not see anything in suggested tags. Please help. "Refresh" tags does not generate any result.