Http Status Code

403

• Check if you IP is banned, or if draco is banned from your proxy provider

409

There is a conflict somewhere, this can be:

• version mismatch, which mean you are using an outdated protocol version (please log an issue and I'll try to fix it)
• data mismatch, like sending the wrong type of data or unexpected value

412

Precondition failed.
This can happend if some incorrect data is sent, like:

• Already logged elsewhere
• Trying to catch a creature when you don't have any of the given sphere
• Trying to catch a creature when your bag is full

502

Server maintenance. Try again later.

500

The server crashed, and it's probably your fault :) I got it when:

• Bad data sent (like sending an array when a string was expected) - you get an error as a response
• IP is banned (no data returned)