Ok. I replaced:
$pos = strpos( $content, $title );
With:
if($title !='') {
$pos = strpos( $content, $title );
}
Seems to work fine now. Am I doing anything wrong? (Still new to PHP) And if that is a good fix, think it could go into the release? I did searches for the error including the line 171 part and WOW, there were a lot of results of people having the same problem.