Errors - EarnProof

Authentication Errors

Error	Meaning
`invalid_wallet`	Stellar public key is malformed
`challenge_expired`	Challenge is no longer valid
`challenge_used`	Challenge was already consumed
`invalid_signature`	Wallet signature does not match challenge
`session_expired`	Bearer session is expired or revoked

Error	Meaning
`payment_not_found`	Payment does not exist or is not owned by user
`unsupported_asset`	Asset is not configured as eligible
`stellar_unavailable`	Horizon or RPC request failed

Error	Meaning
`condition_not_satisfied`	Selected payments do not satisfy claim
`proof_expired`	Proof expiration has passed
`proof_revoked`	Proof has been revoked
`issuer_inactive`	Issuer is suspended, revoked, or unknown
`invalid_credential`	Credential payload is malformed or tampered

{
  "error": {
    "code": "invalid_signature",
    "message": "Invalid wallet signature"
  }
}