I get the following warnings when attempting to log into Joomla 3.3 Administration page and was wondering if K2 had anything to do with it. I am really grasping at straws right now because I can't imagine what might be causing the admin login to fail.

I am using Apache 2.4.10, MySQL 5.6.20, and PHP 5.5.15.

Here are the notices thrown by PHP

[21-Aug-2014 16:53:09 America/Los_Angeles] PHP Notice: Use of undefined constant JPATH_COMPONENT_ADMINISTRATOR - assumed 'JPATH_COMPONENT_ADMINISTRATOR' in C:\dev\www\plugins\k2\incptvk2multipleextrafieldgroups\models\item.php on line 15

[21-Aug-2014 16:53:09 America/Los_Angeles] PHP Notice: Use of undefined constant JPATH_COMPONENT_ADMINISTRATOR - assumed 'JPATH_COMPONENT_ADMINISTRATOR' in C:\dev\www\plugins\k2\incptvk2multiplecategories\models\itemlist.php on line 15

In any case is there a way for me to change the code so that I don't see these notices again?

nobody answers these questions.. Make sure there is not a conflict between various registration-login options-in K-2, go to parameters/advanced and disable the profile grant-you could try that