If you've signed up with a social media account without having your wallet connected at one point and later tried logging in with your Metamask wallet, you might've accidentally created two separate accounts To resolve this simply:
Log in using the social media account you initially used, either Twitter or Discord.
Unlink the socials from your profile. This can be done by hovering over your socials and pressing the X.
Log out from the account you just unlinked your socials from.
Log in with a Metamask wallet connected to your desired Earn Alliance profile to guarantee you're going to the account with the correct wallet.
Link your social media account to this account.