Seed phrase with 11 words

When install Brave, i activate the wallet but the system show to me 11 words and de number 12 is rfepeated word.
Is it possible to open a new wallet?

Having a repeated word is OK and happens.
If you’d like to reset and erase all your wallet information though you can do that in brave://settings/wallet

If you had funds and no backup though, then you will lose access to those funds.