Please check error log for more info. You can check error log in the control

[ukdomainers]

help
[28-Oct-2013 07:36:16 America/New_York] PHP Warning:  Unexpected character in input:  ' in /usr/lib/php/head.php on line 25
[28-Oct-2013 07:36:16 America/New_York] PHP Warning:  Unexpected character in input:  '' (ASCII=14) state=0 in /usr/lib/php/head.php on line 25
[28-Oct-2013 07:36:16 America/New_York] PHP Warning:  Unexpected character in input:  ' in /usr/lib/php/head.php on line 25
[28-Oct-2013 07:36:16 America/New_York] PHP Warning:  Unexpected character in input:  '' (ASCII=8) state=0 in /usr/lib/php/head.php on line 25
[28-Oct-2013 07:36:16 America/New_York] PHP Warning:  Unexpected character in input:  ' in /usr/lib/php/head.php on line 25
[28-Oct-2013 07:36:16 America/New_York] PHP Warning:  Unexpected character in input:  '' (ASCII=8) state=0 in /usr/lib/php/head.php on line 25
[28-Oct-2013 07:36:16 America/New_York] PHP Warning:  Unexpected character in input:  ' in /usr/lib/php/head.php on line 25
[28-Oct-2013 07:36:16 America/New_York] PHP Warning:  Unexpected character in input:  '' (ASCII=8) state=0 in /usr/lib/php/head.php on line 25
[28-Oct-2013 07:36:16 America/New_York] PHP Warning:  Unexpected character in input:  ' in /usr/lib/php/head.php on line 25
[28-Oct-2013 07:36:16 America/New_York] PHP Warning:  Unexpected character in input:  '' (ASCII=15) state=0 in /usr/lib/php/head.php on line 25
[28-Oct-2013 07:36:16 America/New_York] PHP Warning:  Unexpected character in input:  ' in /usr/lib/php/head.php on line 25
[28-Oct-2013 07:36:16 America/New_York] PHP Parse error:  syntax error, unexpected T_STRING in /usr/lib/php/head.php on line 25

[yonghan]

Hello,please provide more details.What are you trying to do?seems it has nothing to do with abantecart.

[Basara]

Hello.

Looks like this warning related to hosting configuration. Please contact your hosting provider