Version 4.1 of Traccar does not work sending commands from the web page

Hello Anton,

Hoping that you are well, I tell you that since I updated to version 4.1 of Traccar does not work the option to send commands to devices from the web page.
I am working with GT06 protocol.

On the web page I only see the message that the command has been sent, but it does not return any error.

Checking in the logs I note that the device returns the information to the Traccar server but apparently the server can not interpret it.

2018-11-06 10:41:41 INFO: [a7fa1be7] id: 359857080882418, command type: custom sent
2018-11-06 10:41:41 INFO: [a7fa1be7: 5023> 181.188.201.162] HEX: 787811800b0000000053544154555323000073120d0a
11/06/2018 10:41:43 INFO: [a7fa1be7: 5023 <181188201162] HEX: 7878c815c0000000004261747465727920566f6c746167653a332e3933563b44617461204c696e6b3a4f6e6c696e653b4e6574776f726b205369676e616c204c6576656c3a33323b4143433a4f4e3b42442f4750533a474e5353205375636365737366756c6c7920506f736974696f6e696e673b535653205573656420696e206669783a39283131293b474e5353205369676e616c204c6576656c3a31392c33332c31352c33372c33302c33392c362c32302c32382c33322c446566656e73653a4f46463b000200004a2c0d0a
2018-11-06 10:41:43 INFO: [a7fa1be7: 5023> 181.188.201.162] HEX: 7878051500002ea10d0a

I look forward to your prompt help and response.

Regards,
oM

As far as I can tell, your command was sent just fine.

Anton,

You can help me with a clue to try to solve the problem.
From what was reviewed in github I see that there is a commit of October 29 ""
735fc14 "where you solve a similar problem related to the H02 protocol.

Maybe some modification should be made in the files "Gt06ProtocolDecoder.java" and "Gt06ProtocolEncoder.java" since I am handling protocol GT06 ?.

I look forward to your prompt response

If you think the format is incorrect, you need to tell me what exactly is incorrect and provide appropriate documentation to support your point.