Looks like you cache was not generated correctly. for example, css file returns 404 error:
try to run
in ssh in the account where your store is installed.
if that did not help, you may need to regenerate the static content:
but this can kill your store if your theme was not customized properly (some morons make the changes inside the static content cache folder so regenerating the static content will remove all those customizations).
I've run those commands like 10 times now and nothing has changed, last time this happened that fixed it but I feel like it's borked now. I'm using stock luma theme.