The message shows when you import a wallet with ETH address different from the ETH address you registered in the beginning.
In the past, Infinito supported to create many wallet so you might create more than 1 wallet.
This issue does only affect when you want to join an marketing event like airdrop in the future, because we will check your email address and ETH address that you registered to distribute the token.
If you have never deposited coin/ token to that address and you are not interested in airdrop programs then you can ignore it. It does not affect to your activity like trade, buy crypto, transfer or deposit etc. on Infinito wallet.