Not a bug Can't create thread


Active member
This is the first time I have ever run into a bug on my xenForo installation so I will do my best to report as much as I can. Basically, when I try to post a thread I get no joy at all, I get an error window pop up but can't see all the way to the bottom as the box is hovering. Below is what I can see from it.

The following error occurred:

preg_match() [function.preg-match]: Delimiter must not be alphanumeric or backslash
  1. XenForo_Application::handlePhpError() in XenForo/Helper/Media.php at line 58
  2. XenForo_Helper_Media->_convertMediaLinkToEmbedHtml() in XenForo/Helper/Media.php at line 39
  3. XenForo_Helper_Media::convertMediaLinkToEmbedHtml() inXenForo/BbCode/Formatter/BbCode/AutoLink.php at line 152
  4. XenForo_BbCode_Formatter_BbCode_AutoLink->_autoLinkUrl() inXenForo/BbCode/Formatter/BbCode/AutoLink.php at line 134
  5. XenForo_BbCode_Formatter_BbCode_AutoLink->_autoLinkUrlCallback() inXenForo/BbCode/Formatter/BbCode/AutoLink.php at line 109
  6. XenForo_BbCode_Formatter_BbCode_AutoLink->filterString() inXenForo/BbCode/Formatter/Base.php at line 488
  7. XenForo_BbCode_Formatter_Base->renderString() in XenForo/BbCode/Formatter/Base.php at line467
  8. XenForo_BbCode_Formatter_Base->renderTreeElement() in XenForo/BbCode/Formatter/Base.php at line 444
  9. XenForo_BbCode_Formatter_Base->renderSubTree() in XenForo/BbCode/Formatter/Base.php at line424
  10. XenForo_BbCode_Formatter_Base->renderTree() in XenForo/BbCode/Parser.php at line 503
  11. XenForo_BbCode_Parser->render() in XenForo/Helper/String.php at line 218
  12. XenForo_Helper_String::autoLinkBbCode() in XenForo/ControllerPublic/Forum.php at line 392
As I say, there could be more but I can't scroll down to see any more! Any help would be greatly appreciated in the matter.