MediaWiki internal error.

Original exception: [cdc96361ab925e80b852e60d] /index.php?title=Especial:Crear_una_cuenta&returnto=Alcances&mobileaction=toggle_view_mobile Error: Call to undefined function wfIncrStats()
Backtrace:
from /home/u104003070/domains/tomepedia.com/public_html/extensions/MobileFrontend/includes/MobileContext.php(623)
#0 /home/u104003070/domains/tomepedia.com/public_html/extensions/MobileFrontend/includes/MobileContext.php(951): MobileContext->setUseFormatCookie()
#1 /home/u104003070/domains/tomepedia.com/public_html/extensions/MobileFrontend/includes/MobileFrontendHooks.php(85): MobileContext->doToggling()
#2 /home/u104003070/domains/tomepedia.com/public_html/includes/HookContainer/HookContainer.php(338): MobileFrontendHooks::onRequestContextCreateSkin(RequestContext, NULL)
#3 /home/u104003070/domains/tomepedia.com/public_html/includes/HookContainer/HookContainer.php(137): MediaWiki\HookContainer\HookContainer->callLegacyHook(string, array, array, array)
#4 /home/u104003070/domains/tomepedia.com/public_html/includes/HookContainer/HookRunner.php(3233): MediaWiki\HookContainer\HookContainer->run(string, array)
#5 /home/u104003070/domains/tomepedia.com/public_html/includes/context/RequestContext.php(490): MediaWiki\HookContainer\HookRunner->onRequestContextCreateSkin(RequestContext, NULL)
#6 /home/u104003070/domains/tomepedia.com/public_html/includes/context/ContextSource.php(175): RequestContext->getSkin()
#7 /home/u104003070/domains/tomepedia.com/public_html/skins/MinervaNeue/includes/Hooks.php(221): ContextSource->getSkin()
#8 /home/u104003070/domains/tomepedia.com/public_html/includes/HookContainer/HookContainer.php(160): MediaWiki\Minerva\Hooks->onSpecialPageBeforeExecute(SpecialCreateAccount, NULL)
#9 /home/u104003070/domains/tomepedia.com/public_html/includes/HookContainer/HookRunner.php(3732): MediaWiki\HookContainer\HookContainer->run(string, array)
#10 /home/u104003070/domains/tomepedia.com/public_html/includes/specialpage/SpecialPage.php(694): MediaWiki\HookContainer\HookRunner->onSpecialPageBeforeExecute(SpecialCreateAccount, NULL)
#11 /home/u104003070/domains/tomepedia.com/public_html/includes/specialpage/SpecialPageFactory.php(1475): SpecialPage->run(NULL)
#12 /home/u104003070/domains/tomepedia.com/public_html/includes/MediaWiki.php(327): MediaWiki\SpecialPage\SpecialPageFactory->executePath(string, RequestContext)
#13 /home/u104003070/domains/tomepedia.com/public_html/includes/MediaWiki.php(923): MediaWiki->performRequest()
#14 /home/u104003070/domains/tomepedia.com/public_html/includes/MediaWiki.php(576): MediaWiki->main()
#15 /home/u104003070/domains/tomepedia.com/public_html/index.php(50): MediaWiki->run()
#16 /home/u104003070/domains/tomepedia.com/public_html/index.php(46): wfIndexMain()
#17 {main}

Exception caught inside exception handler: [cdc96361ab925e80b852e60d] /index.php?title=Especial:Crear_una_cuenta&returnto=Alcances&mobileaction=toggle_view_mobile Error: Call to undefined function wfIncrStats()
Backtrace:
from /home/u104003070/domains/tomepedia.com/public_html/extensions/MobileFrontend/includes/MobileContext.php(623)
#0 /home/u104003070/domains/tomepedia.com/public_html/extensions/MobileFrontend/includes/MobileContext.php(951): MobileContext->setUseFormatCookie()
#1 /home/u104003070/domains/tomepedia.com/public_html/extensions/MobileFrontend/includes/MobileFrontendHooks.php(85): MobileContext->doToggling()
#2 /home/u104003070/domains/tomepedia.com/public_html/includes/HookContainer/HookContainer.php(338): MobileFrontendHooks::onRequestContextCreateSkin(RequestContext, NULL)
#3 /home/u104003070/domains/tomepedia.com/public_html/includes/HookContainer/HookContainer.php(137): MediaWiki\HookContainer\HookContainer->callLegacyHook(string, array, array, array)
#4 /home/u104003070/domains/tomepedia.com/public_html/includes/HookContainer/HookRunner.php(3233): MediaWiki\HookContainer\HookContainer->run(string, array)
#5 /home/u104003070/domains/tomepedia.com/public_html/includes/context/RequestContext.php(490): MediaWiki\HookContainer\HookRunner->onRequestContextCreateSkin(RequestContext, NULL)
#6 /home/u104003070/domains/tomepedia.com/public_html/includes/context/ContextSource.php(175): RequestContext->getSkin()
#7 /home/u104003070/domains/tomepedia.com/public_html/includes/OutputPage.php(2887): ContextSource->getSkin()
#8 /home/u104003070/domains/tomepedia.com/public_html/includes/exception/MWExceptionRenderer.php(184): OutputPage->output()
#9 /home/u104003070/domains/tomepedia.com/public_html/includes/exception/MWExceptionRenderer.php(103): MWExceptionRenderer::reportHTML(Error)
#10 /home/u104003070/domains/tomepedia.com/public_html/includes/exception/MWExceptionHandler.php(132): MWExceptionRenderer::output(Error, integer)
#11 /home/u104003070/domains/tomepedia.com/public_html/includes/exception/MWExceptionHandler.php(249): MWExceptionHandler::report(Error)
#12 /home/u104003070/domains/tomepedia.com/public_html/includes/MediaWiki.php(598): MWExceptionHandler::handleException(Error, string)
#13 /home/u104003070/domains/tomepedia.com/public_html/index.php(50): MediaWiki->run()
#14 /home/u104003070/domains/tomepedia.com/public_html/index.php(46): wfIndexMain()
#15 {main}