PageSpeed Insights received a 404 response from the server.

[domai...@gmail.com]

I am getting a 404 error from pageSpeed insights yet the site is loading. How can i tell where this is coming from and will this impact my site at all?

Here it is: https://developers.google.com/speed/pagespeed/insights/?url=http%3A%2F%2Flaurajade.co.uk%2F

[Peggy Hill]

How can i fix this problem my web :
https://www.facebook.com/Stop-animal-abuse-of-senior-dogs-1551217968535557

[Erwin Hofman]

Showing good at my end, no 404 errors popping up (scoring 71/100 @ mobile & 84/100 @ desktop).