There is some issue while integrating with Postgres , After running program I am getting this error , It is working fine with SQLite3

[Gauthamjm007]

`We are getting the env values
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0xb0 pc=0x434d526]

goroutine 1 [running]:
github.com/jinzhu/gorm.(*DB).clone(0x0, 0x0)
/Users/go/src/github.com/jinzhu/gorm/main.go:856 +0x26
github.com/jinzhu/gorm.(*DB).Debug(...)
/Users/go/src/github.com/jinzhu/gorm/main.go:531
github.com/gouthamjm/backend/crud/api/controllers.(*Server).Initialize(0x487f090, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
/Users/go/src/github.com/gouthamjm/backend/crud/api/controllers/base.go:59 +0xc5
github.com/gouthamjm/backend/crud/api.Run()
/Users/go/src/github.com/gouthamjm/backend/crud/api/server.go:32 +0x265
main.main()
/Users/go/src/github.com/gouthamjm/backend/crud/main.go:6 +0x25
exit status 2
`