Home Assistant on Fire tablet not working

Hi I’ve recently gotten into HA so I don’t know that much about it, anyway I can’t get the Home Assistant app to work on a Fire tablet 7 2019 I also can’t load any Home Assistant web pages on it.
With the app I can download it but then I go and select the server I can’t see any servers on the list, so I try and put the url in and it says it can’t connect to Home Assistant.
With the webpage I put the url in and it says it that the site can’t be reached with the error code “DNS_PROBE_FINISHED_NXDOMAIN” on chrome and on silk browser it just says that “This site can’t be reached” even though I can access it on my laptop and phone.
Is there any fix for this issue?
Thanks for any help.