Crazy Error/ Warnings about Plugins

Hey Guys,

Freaking out right now. ALL I did was activate a new theme I found online called "Photum" then started getting weird header already sent errors along with some other weird one.

I immediatly deleted the theme using FTP because it wouldn't let me do it via admin. But even after I did that im getting more errors and when I click "Log Out' of Wordpress here is what I get.. please help..

Warning: include_once(includes/custompost.php) [function.include-once]: failed to open stream: No such file or directory in /home/nakedfr/public_html/wp-content/themes/holder/functions.php on line 94

Warning: include_once() [function.include]: Failed opening 'includes/custompost.php' for inclusion (include_path='.:disappointed:usr/lib/php:disappointed:usr/local/lib/php') in /home/nakedfr/public_html/wp-content/themes/holder/functions.php on line 94

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-content/plugins/signup-password/signup-password.php on line 215

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-content/plugins/sitewide-privacy-options/sitewide-privacy-options.php on line 556

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-login.php on line 368

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-login.php on line 380

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 697

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 698

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 699

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 700

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 701

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 702

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 705

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 706

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 707

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 708

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 711

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 712

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 713

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 714

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-content/plugins/easyblogging/lib/wdeb_callbacks.php on line 4

Warning: Cannot modify header information - headers already sent by (output started at /home/nakedfr/public_html/wp-content/themes/holder/functions.php:94) in /home/nakedfr/public_html/wp-includes/pluggable.php on line 876