I'm getting an error too:
[WPYKsU1ooVIAAEHCJnkAAAAG] /Special:MathStatus MWException from line 104 of /home/petters1/public_html/w/extensions/Math/MathRestbaseInterface.php: TeX input is invalid.
Backtrace:
#0 /home/petters1/public_html/w/extensions/Math/MathRestbaseInterface.php(395): MathRestbaseInterface->calculateHash()
#1 /home/petters1/public_html/w/extensions/Math/MathRestbaseInterface.php(95): MathRestbaseInterface->getContentRequest(string)
#2 /home/petters1/public_html/w/extensions/Math/MathRestbaseInterface.php(224): MathRestbaseInterface->getContent(string)
#3 /home/petters1/public_html/w/extensions/Math/MathRenderer.php(657): MathRestbaseInterface->getSvg()
#4 /home/petters1/public_html/w/extensions/Math/MathMathML.php(357): MathRenderer->getSvg()
#5 /home/petters1/public_html/w/extensions/Math/MathMathML.php(398): MathMathML->correctSvgStyle(NULL)
#6 /home/petters1/public_html/w/extensions/Math/MathMathML.php(466): MathMathML->getFallbackImage()
#7 /home/petters1/public_html/w/extensions/Math/SpecialMathStatus.php(70): MathMathML->getHtmlOutput()
#8 /home/petters1/public_html/w/extensions/Math/SpecialMathStatus.php(52): SpecialMathStatus->testSpecialCaseText()
#9 /home/petters1/public_html/w/extensions/Math/SpecialMathStatus.php(42): SpecialMathStatus->runMathMLTest(string)
#10 /home/petters1/public_html/w/includes/specialpage/SpecialPage.php(522): SpecialMathStatus->execute(NULL)
#11 /home/petters1/public_html/w/includes/specialpage/SpecialPageFactory.php(577): SpecialPage->run(NULL)
#12 /home/petters1/public_html/w/includes/MediaWiki.php(283): SpecialPageFactory::executePath(Title, RequestContext)
#13 /home/petters1/public_html/w/includes/MediaWiki.php(851): MediaWiki->performRequest()
#14 /home/petters1/public_html/w/includes/MediaWiki.php(512): MediaWiki->main()
#15 /home/petters1/public_html/w/index.php(43): MediaWiki->run()
#16 {main}