# Troubleshooting

**"TronLink not found"**\
Install the TronLink browser extension from the official Chrome Web Store. Refresh the page after installation.

**"Insufficient USDT balance"**\
Your wallet does not have enough USDT for the selected pool. Transfer USDT (TRC-20) to your wallet first.

**"Approval rejected"**\
You declined the USDT approval in your wallet. Try again and confirm the approval prompt.

**"Duplicate commitment"**\
The generated note collided with an existing one (extremely rare). Click Deposit again to generate a new note.

**"Note already spent"**\
This note has already been used to withdraw. Each note can only be used once.

**"Root expired"**\
Too many new deposits occurred between your proof generation and withdrawal submission. Click Withdraw again to generate a fresh proof.

**"Invalid note format"**\
Check that you pasted the complete note starting with "8mix-" and that the pool amount matches.

**"WalletConnect project ID not configured"**\
WalletConnect requires a project ID. Contact the 8mix team or use TronLink instead.

**"Pool contract not deployed"**\
The selected pool is not yet active on mainnet. Choose a different pool or check back later.
