website broke up

Hello, hope you all are doing well…

I have a website that works fine functionally but it has a little bit of an issue showing up when I visited the web. It seems to be working, but when I visit the website it was showing messed up flashes before then it automatically corrects itself to the way it should look. Can that be fixed?

I tried to fix it by deactivating all the plugins but no luck, still the same problem. Can anyone help me with this issue?

Thanks.

The page I need help with: [log in to see the link]