Error in onNativeSizeChanged

[RagnowProductions]

I have an HTML version of my project that I got from here, and 8 hours ago it was running properly. Now, I have an error saying

@https://v6p9d9t4.ssl.hwcdn.net/html/8936085/index.html:211:66030
forEach@[native code]
gi@https://v6p9d9t4.ssl.hwcdn.net/html/8936085/index.html:211:65334
onNativeSizeChanged@https://v6p9d9t4.ssl.hwcdn.net/html/8936085/index.html:237:45249
@https://v6p9d9t4.ssl.hwcdn.net/html/8936085/index.html:218:42916
_setNativeSize@https://v6p9d9t4.ssl.hwcdn.net/html/8936085/index.html:237:27576
setStageSize@https://v6p9d9t4.ssl.hwcdn.net/html/8936085/index.html:237:27407
U@https://v6p9d9t4.ssl.hwcdn.net/html/8936085/index.html:237:25626
setup@https://v6p9d9t4.ssl.hwcdn.net/html/8936085/index.html:243:80361
global code@https://v6p9d9t4.ssl.hwcdn.net/html/8936085/index.html:277:24
User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Safari/605.1.15