BCE protocol issue

Device : BCE FMS500 ONE
https://docs.bce.lt/display/HAR/FMS500+ONE+user+guide
Protocol: BCE
Port: 5080
protocol documentation:
https://docs.google.com/document/d/1TZCsx4zYiEj6JWrDRXx-tK3We_9YaCQzyWoF-gmO8lk/edit

error log

2020-06-10 16:22:23  INFO: [5ff3d029: bce < 94.57.216.88] HEX: f7781d7258140300db01a5f02a579637bbeb404b7a5d42cdd3c941061faf00000452fa40f180033700000000eb0fa801021c10b056002d00009637bbeb404d7a5d42e9d3c941081f08000000000000f1802f3700000000eb0fa801021c10b056002d2a779637bbeb40567a5d4210d4c9410b1f0c010036a49e41f1808f3500000000eb0fa801021c10b056002d2aa79637bbeb40887a5d4299d4c941141f230000bebf0d42f180883700000000eb0fa801021c10b056002d2ab79637bbeb409a7a5d4295d4c9410b1f370000c758e140f180e43200000000eb0fa801021c10af56003d2af79637bbeb40e97a5d424ad4c9410c1f2700008b610a42f180f13600000000e90fa801021c10af56003d2a079737bbeb40f57a5d4257d4c9410b1f160000d8e9b240f1805b3600000000eb0fa801021c10af56003d2a379737bbeb40027b5d426cd4c941001f1b0100307f0f40f180dc3300000000eb0fa801021c10af56003d2a779737bbeb40027b5d4270d4c941001f1b010000000000e080133500000000ec0fa801021c10af5600272a379837bbeb40027b5d4270d4c941001f1b010000000000f1801d3700000000eb0fa801021c10af56001e2aa79837bbeb40077b5d429ad4c941091f0d000000000000f180ce3600000000eb0fa801021c10af56002058
2020-06-10 16:22:23  WARN: [5ff3d029] error - readerIndex: 574, writerIndex: 486 (expected: 0 <= readerIndex <= writerIndex <= capacity(486)) - IndexOutOfBoundsException (... < BceProtocolDecoder:310 < ExtendedObjectDecoder:51 < ... < WrapperContext:102 < ...)

2020-06-10 16:12:00  INFO: [3b077e36: bce < 94.57.216.88] HEX: 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
2020-06-10 16:12:00  WARN: [3b077e36] error - readerIndex: 574, writerIndex: 486 (expected: 0 <= readerIndex <= writerIndex <= capacity(486)) - IndexOutOfBoundsException (... < BceProtocolDecoder:310 < ExtendedObjectDecoder:51 < ... < WrapperContext:102 < ...)