Internal server error when send over 3 MAM messages

[yillkid]

Got Internal server error from API response after sending over 3 MAM messages.

Reproduce

The IOTA SEED that send over 3 MAM messages

Request:

curl http://node.deviceproof.org:6699/mam/send \
  -X POST \
  -H 'Content-Type: application/json' \
  -d '{"x-api-key": "3bff60110c9f0e40628031b16dfefe2eb45a6b0c2237b49ef5109f9aa8eb19a8", "data": {"seed": "AUFXQETKSHDYPFUDO9ILVCAVQIXOHXKCECZYFLPBNVIX9JUXQZJE9URQEEUWPWYZOIACTCGZX9IDIODCA","message": "No 5. "},"protocol": "MAM_V1"}'

Response:

{"message": "Internal service error"}

Renew IOTA SEED

Request:

curl http://node.deviceproof.org:6699/mam/send \
  -X POST \
  -H 'Content-Type: application/json' \
  -d '{"x-api-key": "3bff60110c9f0e40628031b16dfefe2eb45a6b0c2237b49ef5109f9aa8eb19a8", "data": {"seed": "JUFXQETKSHDYPFUDO9ILVCAVQIXOHXKCECZYFLPBNVIX9JUXQZJE9URQEEUWPWYZOIACTCGZX9IDIODCA","message": "No 5. "},"protocol": "MAM_V1"}'

Response:

{"bundle_hash":"WUAFSILASECCKTKUCQBCRHFHDSGJWCSPLAIPZBLJTIBRRPUDCIOZ9BNKHVPXLGDYADQEEDBLWWJLDCWWZ","chid":"9GBE9UWEXSRAPKE9UTDYD9C9CWCZMAXUHCLVQ9VACBQVMBNJAUYRNNUAHQIVGPANVVHYVARKKAUDXNDCT","msg_id":"IONONZOXVGTNGVEOCXPUI"}