TOKEN_USED Link already used

HTTP status
401
Credit
No credit taken

Meaning

E-mail links work once, and this one has been used.

Fix

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Example response

{
  "type": "https://checkslip.com/problems/token-used",
  "title": "Link already used",
  "status": 401,
  "code": "TOKEN_USED",
  "instance": "019a2f3e-7b1c-7d4e-9f00-0a1b2c3d4e5f"
}