when gmail is not receiving emails. it means, something is wrong with the account settings or password. so here are the guide to fix it on your device.
https://askprob.com/fix-gmail-....not-receiving-emails

Why Is My Gmail Not Receiving Emails?
askprob.com

Why Is My Gmail Not Receiving Emails?

If Gmail is not receiving emails on the computer, iPhone, Android or another device. you should check the filters, mail, and app settings.