Cant Checkout Or Login

[aee156]

Hi, 

My shop goes to your cart is empty error when clicking checkout and my admin sign in goes to # when trying to login. I have PS Ver 1.4.2.5. I know everyone is going to tell me to upgrade but I like my shop the way it is and would rather not.

I have already

• Called my host (they said to go to a developer)
• Researched on forums etc. 
• Tried to raise max user connections ( successfully raised to 100)
• I cannot login to try turning ajax cart off

Here are a string of my error codes

[10-Jan-2018 05:51:02 US/Pacific-New] PHP Warning:  in_array() expects parameter 2 to be array, null given in /home/account/public_html/tools/smarty/compile/ae76441a601226cba3d25b9ba6f2e9c74d2f7d9a.file.product-list.tpl.php on line 81
[10-Jan-2018 06:38:33 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/controllers/CMSController.php on line 46
[10-Jan-2018 06:38:33 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/classes/Tools.php on line 93
[10-Jan-2018 07:30:59 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/controllers/CMSController.php on line 46
[10-Jan-2018 07:30:59 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/classes/Tools.php on line 93
[10-Jan-2018 09:33:23 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/controllers/CMSController.php on line 46
[10-Jan-2018 09:33:23 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/classes/Tools.php on line 93
[10-Jan-2018 10:45:02 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/controllers/CMSController.php on line 46
[10-Jan-2018 10:45:02 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/classes/Tools.php on line 93
[10-Jan-2018 11:11:32 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/controllers/CMSController.php on line 46
[10-Jan-2018 11:11:32 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/classes/Tools.php on line 93
[10-Jan-2018 11:23:57 US/Pacific-New] PHP Warning:  in_array() expects parameter 2 to be array, null given in /home/account/public_html/tools/smarty/compile/ae76441a601226cba3d25b9ba6f2e9c74d2f7d9a.file.product-list.tpl.php on line 81
[10-Jan-2018 11:43:53 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/controllers/CMSController.php on line 46
[10-Jan-2018 11:43:53 US/Pacific-New] PHP Warning:  Cannot modify header information - headers already sent by (output started at /home/account/public_html/cms.php:3) in /home/account/public_html/classes/Tools.php on line 93

Any help please?