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Has anyone got Error when using Google pagespeed test TypeError: Cannot read property 'length' of undefined

When I tried to test for speed at our site, I got the error below. Not sure what wrong. I tried other service like pingdom to check and the site load fine. Hope someone can lend an insight. Site link: https://www.insperity.com/blog/calling-in-sick-2/

TypeError: Cannot read property 'length' of undefined
        at DetailsRenderer._renderTable (labreport_js.js:77)
        at DetailsRenderer.render (labreport_js.js:71)
        at PerformanceCategoryRenderer.populateAuditValues (labreport_js.js:87)
        at PerformanceCategoryRenderer._renderOpportunity (labreport_js.js:119)
        at labreport_js.js:125
        at Array.forEach (<anonymous>)
        at PerformanceCategoryRenderer.render (labreport_js.js:125)
        at prepareLabData (labreport_js.js:148)
        at In (www.gstatic.com/pagespeed/insights/76/js/lightsights-en.js:332)
        at Hn.f.b (www.gstatic.com/pagespeed/insights/76/js/lightsights-en.js:328)
    (anonymous) @ www.gstatic.com/pagespeed/insights/76/js/lightsights-en.js:344
Solution

  • This was a bug in the PageSpeed Insights frontend. It was fixed soon after.

    Details: https://github.com/GoogleChrome/lighthouse/issues/10414#issuecomment-597235264