Here are the main error codes and their solutions:
  1. Authentication Error (407):
    • Meaning: Your credentials are invalid
    • Fix: Verify your username and password format
  2. Bad Request (400):
    • Meaning: Your request is malformed
    • Fix: Check routing parameters and request syntax
  3. Disallowed Content (452):
    • Meaning: Request violates content policy
    • Fix: Check for prohibited ports or restricted protocols
  4. Server Issues:
    • 500 (Internal Server Error): Wait and retry
    • 502 (Bad Gateway): Network couldn’t find suitable proxy
    • 503 (Service Unavailable): Geotargeting too restrictive or high network demand