MediaWiki internal error.

Original exception: [1875ea47] /index.php?title=%D0%9E%D0%B1%D1%8A%D1%8F%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F&action=edit Exception from line 500 of /home/webpro/domains/mintys.info/public_html/molod/includes/EditPage.php:
Backtrace:
#0 /home/webpro/domains/mintys.info/public_html/molod/includes/EditPage.php(390): EditPage->displayPermissionsError()
#1 /home/webpro/domains/mintys.info/public_html/molod/extensions/WYSIWYG/CKeditor.body.php(232): EditPage->edit()
#2 /home/webpro/domains/mintys.info/public_html/molod/includes/Hooks.php(199): CKeditor_MediaWiki->onCustomEditor()
#3 /home/webpro/domains/mintys.info/public_html/molod/includes/GlobalFunctions.php(3877): Hooks::run()
#4 /home/webpro/domains/mintys.info/public_html/molod/includes/actions/EditAction.php(48): wfRunHooks()
#5 /home/webpro/domains/mintys.info/public_html/molod/includes/Wiki.php(448): EditAction->show()
#6 /home/webpro/domains/mintys.info/public_html/molod/includes/Wiki.php(312): MediaWiki->performAction()
#7 /home/webpro/domains/mintys.info/public_html/molod/includes/Wiki.php(602): MediaWiki->performRequest()
#8 /home/webpro/domains/mintys.info/public_html/molod/includes/Wiki.php(467): MediaWiki->main()
#9 /home/webpro/domains/mintys.info/public_html/molod/index.php(49): MediaWiki->run()
#10 {main}

Exception caught inside exception handler: [9f41cc02] /index.php?title=%D0%9E%D0%B1%D1%8A%D1%8F%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F&action=edit Exception from line 212 of /home/webpro/domains/mintys.info/public_html/molod/includes/Hooks.php: Detected bug in an extension! Hook Cite::checkRefsNoReferences has invalid call signature; Parameter 2 to Cite::checkRefsNoReferences() expected to be a reference, value given
Backtrace:
#0 /home/webpro/domains/mintys.info/public_html/molod/includes/GlobalFunctions.php(3877): Hooks::run()
#1 /home/webpro/domains/mintys.info/public_html/molod/includes/parser/Parser.php(396): wfRunHooks()
#2 /home/webpro/domains/mintys.info/public_html/molod/includes/cache/MessageCache.php(1042): Parser->parse()
#3 /home/webpro/domains/mintys.info/public_html/molod/includes/Message.php(843): MessageCache->parse()
#4 /home/webpro/domains/mintys.info/public_html/molod/includes/Message.php(584): Message->parseText()
#5 /home/webpro/domains/mintys.info/public_html/molod/includes/Message.php(639): Message->toString()
#6 /home/webpro/domains/mintys.info/public_html/molod/includes/OutputPage.php(2220): Message->parse()
#7 /home/webpro/domains/mintys.info/public_html/molod/includes/Exception.php(406): OutputPage->showPermissionsErrorPage()
#8 /home/webpro/domains/mintys.info/public_html/molod/includes/Exception.php(606): PermissionsError->report()
#9 /home/webpro/domains/mintys.info/public_html/molod/includes/Exception.php(678): MWExceptionHandler::report()
#10 /home/webpro/domains/mintys.info/public_html/molod/includes/Wiki.php(470): MWExceptionHandler::handle()
#11 /home/webpro/domains/mintys.info/public_html/molod/index.php(49): MediaWiki->run()
#12 {main}