CF Tunnel not working

Hi , I’ve setup my domain with CF, changed CF Name Servers, installed tunnel between nas and CF “green working”, I added public host name “routes”, setup email pin, email relay.

Now email relay works but when I got to my nas dot domain dot com it looks like it’s doing something or loading for few seconds and then I get:
"This site can’t be reached

nas dot domain dot com took too long to respond."

Am I missing something? everything seems right and still cant get my nas login page

Thanks in advance