Error message after upgrading to version 2.3.3

-- url of the page with the problem -- : www.signature-tunes.com/entertainment-mu...nity/983-ace/profile
-- HikaShop version -- : 2.3.3
-- Joomla version -- : 3.2.3
-- PHP version -- : 5.3.25
-- Browser(s) name and version -- : Chrome Version 37.0.2062.124
-- Error-message(debug-mod must be tuned on) -- : Warning: Cannot modify header information - headers already sent by (output started at /home/s1ngartf/public_html/administrator/components/com_hikashop/helpers/helper.php:1) in /home/s1ngartf/public_html/components/com_community/libraries/core.php on line 533

Warning: Cannot modify header information - headers already sent by (output started at /home/s1ngartf/public_html/administrator/components/com_hikashop/helpers/helper.php:1) in /home/s1ngartf/public_html/components/com_community/libraries/core.php on line 508

I am receiving these error messages at the top of the page after upgrading to version 2.3.3. I have searched the internet for a solution but have not management to find one.

I did not have this problem before recently upgrading so even though the error messages are only appearing on some of the JomSocial profile pages I must assume that they are related to HikaShop as they were not there before the upgrade.

Any help would be greatly appreciated. Thank you.