NullPointerException (DeviceManager:427 < *:416

Someone quem help me about this error?

Traccar version: 4.12

2021-05-20 16:22:46  INFO: [8f5a8003: h02 > 201.23.177.60] HEX: 2a48512c3836353230353033303439313132392c56342c56312c323032313035323031393232343623
2021-05-20 16:22:46  WARN: [8f5a8003] error - NullPointerException (DeviceManager:427 < *:416 < OverspeedEventHandler:123 < BaseEventHandler:29 < ...)
2021-05-20 16:22:46  INFO: [8f5a8003] disconnected
2021-05-20 16:22:50  INFO: [90df7fb8] connected
2021-05-20 16:22:55  INFO: [90df7fb8: h02 < 201.23.177.60] HEX: 2a48512c3836353230353033303439313132392c56312c3139323234382c412c323333322e32323737332c532c30343634352e33343933382c572c302e30302c302c3230303532312c4646464646424646230d0a8cd801
2021-05-20 16:22:55  INFO: [90df7fb8: h02 > 201.23.177.60] HEX: 2a48512c3836353230353033303439313132392c56342c56312c323032313035323031393232353523
2021-05-20 16:22:55  WARN: [90df7fb8] error - NullPointerException (DeviceManager:427 < *:416 < OverspeedEventHandler:123 < BaseEventHandler:29 < ...)
2021-05-20 16:22:55  INFO: [90df7fb8] disconnected
2021-05-20 16:22:57  INFO: [f326da3b] connected
2021-05-20 16:22:57  INFO: [f326da3b: gt06 < 187.114.84.235] HEX: 78780d01035231209061245100019ebc0d0a
2021-05-20 16:22:57  WARN: [f326da3b] error - NullPointerException (DeviceManager:427 < *:390 < BaseProtocolDecoder:94 < *:89 < Gt06ProtocolDecoder:452 < ...)
2021-05-20 16:22:57  INFO: [f326da3b] disconnected
2021-05-20 16:22:57  INFO: [1e49496b] connected
2021-05-20 16:22:59  INFO: [1e49496b: h02 < 201.23.177.60] HEX: 2a48512c3836353230353033303439313132392c56312c3139323235382c412c323333322e32323737332c532c30343634352e33343933382c572c302e30302c302c3230303532312c4646464646424646230d0a
2021-05-20 16:22:59  INFO: [1e49496b: h02 > 201.23.177.60] HEX: 2a48512c3836353230353033303439313132392c56342c56312c323032313035323031393232353923
2021-05-20 16:22:59  WARN: [1e49496b] error - NullPointerException (DeviceManager:427 < *:416 < OverspeedEventHandler:123 < BaseEventHandler:29 < ...)
2021-05-20 16:22:59  INFO: [1e49496b] disconnected
2021-05-20 16:23:01  INFO: [bab45c76] connected
2021-05-20 16:23:09  INFO: [bab45c76: h02 < 201.23.177.60] HEX: 2a48512c3836353230353033303439313132392c56312c3139323330382c412c323333322e32323737332c532c30343634352e33343933382c572c302e30302c302c3230303532312c4646464646424646230d0a
2021-05-20 16:23:09  INFO: [bab45c76: h02 > 201.23.177.60] HEX: 2a48512c3836353230353033303439313132392c56342c56312c323032313035323031393233303923
2021-05-20 16:23:09  WARN: [bab45c76] error - NullPointerException (DeviceManager:427 < *:416 < OverspeedEventHandler:123 < BaseEventHandler:29 < ...)
2021-05-20 16:23:09  INFO: [bab45c76] disconnected
2021-05-20 16:23:11  INFO: [51b9b65c] connected

Check the source code and find the corresponding line from the stack trace. This should give us more information why it's failing.

https://github.com/traccar/traccar/blob/8ecc4af154ec67a8818a21b96a9f10a74bfc919c/src/main/java/org/traccar/database/DeviceManager.java#L427

https://github.com/traccar/traccar/blob/8ecc4af154ec67a8818a21b96a9f10a74bfc919c/src/main/java/org/traccar/handler/events/OverspeedEventHandler.java#L123

https://github.com/traccar/traccar/blob/9702fc67d842017f27832abd3b8edba47cda0f4f/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java#L452

Looks like your device doesn't have attributes property. Did you create it manually or via API?

via API