Gas app error - we only allow mobile phone numbers…

so when I'm trying to create an account in Gaza app I'm just entering a normal phone number and I try to tap next it's just say sorry we only allow mobile phone numbers however I think I'm using like a mobile phone number just to show you guys how it works but then I'll just see this error so yeah I don't know I have to fix it maybe just because they have some server issues or what's happening like why they don't allow people to sign up uh but for some reason you can't get the the confirmation code when you try to create an account so there you have it