getting error with orca forum

[ibiotech]

hey plz help me out i am getting this error on clicking on forum option ....

Warning: DOMDocument::loadXML() [function.DOMDocument-loadXML]: Empty string supplied as input in /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/classes/Forum.php on line 1729

Warning: DOMDocument::loadXML() [function.DOMDocument-loadXML]: Empty string supplied as input in /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/classes/Forum.php on line 1729

Warning: DOMDocument::loadXML() [function.DOMDocument-loadXML]: Empty string supplied as input in /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/classes/Forum.php on line 1729

Warning: DOMDocument::loadXML() [function.DOMDocument-loadXML]: Empty string supplied as input in /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/classes/Forum.php on line 1595

Warning: Cannot modify header information - headers already sent by (output started at /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/classes/Forum.php:1729) in /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/inc/util.inc.php on line 36

Warning: Cannot modify header information - headers already sent by (output started at /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/classes/Forum.php:1729) in /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/inc/util.inc.php on line 37

Warning: Cannot modify header information - headers already sent by (output started at /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/classes/Forum.php:1729) in /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/inc/util.inc.php on line 38

Warning: Cannot modify header information - headers already sent by (output started at /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/classes/Forum.php:1729) in /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/inc/util.inc.php on line 39

Warning: Cannot modify header information - headers already sent by (output started at /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/classes/Forum.php:1729) in /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/classes/BxXslTransform.php on line 56

Fatal error: Class 'XsltProcessor' not found in /home/ptforums/domains/helloindore.uni.cc/public_html/zone/orca/classes/BxXslTransform.php on line 73

[mrpowless]

You have to talk to your host and ask them to turn on xlst (xls) support or find a new host if they wont. forums will not run at all no matter what you do.
then wait for 12-24 hours while they turn it on.