I'm assuming it may be my cronjob, but how do we know if it's running properly or like it should?

For some odd reason, and this is just a hunch, but is it not being deleted from the database?

Besides this occurring, (not able to "Unfollow"), users who log in then close the browser, and do not return for several days are still logged in and viewed as online...I read in another forum topic that users who do this gets logged out after 30 minutes of inactivity...I'm having this issue as well, which is why I think my cronjob isn't working properly.

Is there a way to see if it is working properly?  Like do a test run?  Or something of the sort?

Try to send a mass mail

Ok, I did and that works.  Took a few minutes before I received the email though...

Was doing this to test and see if cron was the issue?

And if cron isn't the issue, why am I still unable to "Unfollow" people?

Can you please enable debug mode and also check the Firebug console if there's any error?

Is debug mode different than dev mode?  Last time I set true to dev mode, then put it back to false my site went back to it's original state and I lost all my custom code... :(  Will that happen if I put true to debug mode?

And as for Firebug console...???

Ok I enabled the debug mode and this is what I received via "error_log" in root directory:

[11-Mar-2014 08:05:21] PHP Notice: Use of undefined constant OW_DIR_STATIC - assumed 'OW_DIR_STATIC' in ../public_html/ow_includes/define.php on line 9

[11-Mar-2014 08:05:21] PHP Notice: Use of undefined constant OW_DIR_USERFILES - assumed 'OW_DIR_USERFILES' in ../public_html/ow_includes/define.php on line 11

[11-Mar-2014 08:05:21] PHP Notice: Use of undefined constant OW_DIR_UTIL - assumed 'OW_DIR_UTIL' in ../public_html/ow_includes/init.php on line 11

[11-Mar-2014 08:05:21] PHP Warning: require_once(OW_DIR_UTILdebug.php) [<a href='function.require-once'>function.require-once</a>]: failed to open stream: No such file or directory in ../public_html/ow_includes/init.php on line 11

[11-Mar-2014 08:05:21] PHP Fatal error: require_once() [<a href='function.require'>function.require</a>]: Failed opening required 'OW_DIR_UTILdebug.php' (include_path='.:/usr/php/54/usr/lib64:/usr/php/54/usr/share/pear') in ../public_html/ow_includes/init.php on line 11

??

can you please PM me your admin and Cpanel access details, I'll take a look at the problem

Sent.

+1 for ross!  Thank you kindly for helping me get this fixed.

The issue or root cause of this was the "Admin Pal" plugin.  Once disabled, the "Unfollow" feature worked like it should if you are or are not a friend to someone.  With this particular plugin activated, the "Unfollow" feature doesn't work only if you are friends with someone.

Again, thanks for helping me get this resolved ross!  I'll start a topic on the 3rd party developer who created the "Admin Pal" plugin in hopes he/she can fix this issue!