Fix Golang Script Error

I currently encounter the following problems when run my golang script:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x6e89db]
goroutine 58 [running]:

github.com/pool/proxy.(*ProxyServer).setDeadline(0xc00013f180, 0x0)
/home/pool/build/_workspace/src/github.com/ei8ht187/pool/proxy/stratum.go:173 +0x3b
github.com/pool/proxy.(*ProxyServer).broadcastNewJobs.func1(0xc000024380)
/home/pool/build/_workspace/src/github.com/pool/proxy/stratum.go:216 +0x13d
created by github.com/pool/proxy.(*ProxyServer).broadcastNewJobs
/home/pool/build/_workspace/src/github.com/pool/proxy/stratum.go:209 +0x305

I would like to hire someone the fix this problem. Sorry my poor english.
Regards,