Unexpected Application Error!

Unable to preload CSS for /assets/ErrorPage-CJRpQRxM.css

Error: Unable to preload CSS for /assets/ErrorPage-CJRpQRxM.css
    at HTMLLinkElement.<anonymous> (https://funnel.airhelp.com/assets/index-KJlddWDP.js:18:23216)
    at HTMLLinkElement.r (https://funnel.airhelp.com/assets/@sentry/react-BU2af6-O.js:26:5163)