Internal error

Detected bug in an extension! Hook InfoboxDataCapture::save failed to return a value; should return true to continue hook processing or false to abort.

Backtrace:

#0 /homepages/28/d195765556/htdocs/mydomain/includes/Article.php(1478): wfRunHooks('ArticleSaveComp...', Array)
#1 /homepages/28/d195765556/htdocs/mydomain/includes/Article.php(1238): Article->doEdit('{{#listsplit:sy...', '', 98)
#2 /homepages/28/d195765556/htdocs/mydomain/includes/EditPage.php(965): Article->updateArticle('{{#listsplit:sy...', '', false, false, false, '')
#3 /homepages/28/d195765556/htdocs/mydomain/includes/EditPage.php(2189): EditPage->internalAttemptSave(false, false)
#4 /homepages/28/d195765556/htdocs/mydomain/includes/EditPage.php(463): EditPage->attemptSave()
#5 /homepages/28/d195765556/htdocs/mydomain/includes/EditPage.php(323): EditPage->edit()
#6 /homepages/28/d195765556/htdocs/mydomain/includes/Wiki.php(444): EditPage->submit()
#7 /homepages/28/d195765556/htdocs/mydomain/includes/Wiki.php(48): MediaWiki->performAction(Object(OutputPage), Object(Article), Object(Title), Object(User), Object(WebRequest))
#8 /homepages/28/d195765556/htdocs/mydomain/index.php(90): MediaWiki->initialize(Object(Title), Object(OutputPage), Object(User), Object(WebRequest))
#9 {main}