We have received a report that some cannot make a purchase on Metamask from mobile.
We are currently looking into this issue.
Following steps may solve the issue.
1. Connect your wallet using other crypto wallets such as SafePal
2. Connect Metamask from your computer
In order to do so, import your wallet and please refer from the link below for details
https://metamask.zendesk.com/hc/en-us/articles/360015489331-How-to-import-an-account
We apologize for any inconvenience and appreciate your understanding.
We will continue looking into the issues.