error when there is no data IPList array on endpoint jail/{jailname}

[rasyidwi]

This error on golang logs. I use golang latest, and install like on readme. And my fail2ban version is 1.0.2

runtime error: index out of range [0] with length 0
goroutine 28 [running]:
net/http.(*conn).serve.func1()
/usr/local/go/src/net/http/server.go:1850 +0xbf
panic({0x879020, 0xc0000c8ac8})
/usr/local/go/src/runtime/panic.go:890 +0x262
github.com/sean-der/fail2go.(*Conn).JailStatus(0x4?, {0xc0000b6bca, 0x9})
/go/pkg/mod/github.com/sean-der/fail2go@v0.0.1/jail.go:24 +0x9d1
main.jailGetHandler({0x92d790, 0xc00013a460}, 0x82f860?, 0x929750?)
/app/jail.go:16 +0x7d
main.jailHandler.func10({0x92d790?, 0xc00013a460?}, 0xc000121920?)
/app/jail.go:255 +0x27
net/http.HandlerFunc.ServeHTTP(0xc00010d500?, {0x92d790?, 0xc00013a460?}, 0xc000047990?)
/usr/local/go/src/net/http/server.go:2109 +0x2f
github.com/gorilla/mux.(*Router).ServeHTTP(0xc000102000, {0x92d790, 0xc00013a460}, 0xc00010d400)
/go/pkg/mod/github.com/gorilla/mux@v1.8.1/mux.go:212 +0x1cf
net/http.(*ServeMux).ServeHTTP(0x0?, {0x92d790, 0xc00013a460}, 0xc00010d400)
/usr/local/go/src/net/http/server.go:2487 +0x149
net/http.serverHandler.ServeHTTP({0xc0001217d0?}, {0x92d790, 0xc00013a460}, 0xc00010d400)
/usr/local/go/src/net/http/server.go:2947 +0x30c
net/http.(*conn).serve(0xc0001159a0, {0x92dbe0, 0xc000120600})
/usr/local/go/src/net/http/server.go:1991 +0x607
created by net/http.(*Server).Serve
/usr/local/go/src/net/http/server.go:3102 +0x4db