With these words: 'I have modified lots of files...' I don't think someone can help you, buddy.
My suggestion is, if you want a custom and correctly working version, use professional support from Anton: support[at]traccar.org
Please respect his work and contribute to developing this project!
Thanks for replying I found the where is the error. Now it's sending data.
I am facing issue with socket connection i am not receiving devices data in sockets, position or events are showing. I have modified lots of files, can you tell me its server side code issue, web side code issue.
do the needful.