exception recovered: runtime error: invalid memory address or nil pointer dereference

runtime/debug.Stack()
	/usr/local/go/src/runtime/debug/stack.go:24 +0x65
golang.org/x/sync/singleflight.newPanicError({0x1330500?, 0xa092000})
	/home/pc/go/pkg/mod/golang.org/x/sync@v0.7.0/singleflight/singleflight.go:44 +0x2c
golang.org/x/sync/singleflight.(*Group).doCall.func2.1()
	/home/pc/go/pkg/mod/golang.org/x/sync@v0.7.0/singleflight/singleflight.go:193 +0x3b
panic({0x1330500, 0xa092000})
	/usr/local/go/src/runtime/panic.go:884 +0x213
github.com/ip2location/ip2location-go/v9.(*DB).query(_, {_, _}, _)
	/home/pc/go/pkg/mod/github.com/ip2location/ip2location-go/v9@v9.7.0/ip2location.go:919 +0xbb
github.com/ip2location/ip2location-go/v9.(*DB).Get_all(...)
	/home/pc/go/pkg/mod/github.com/ip2location/ip2location-go/v9@v9.7.0/ip2location.go:786
gtcms/utility/iploc.IPv4Loc({0xc08d37b700?, 0x1a?})
	/home/pc/ng-workspace/gtcms/uapi/utility/iploc/iploc.go:67 +0x6a
gtcms/utility/iploc.IPLoc({0xc08d37b700, 0xe})
	/home/pc/ng-workspace/gtcms/uapi/utility/iploc/iploc.go:84 +0x65
gtcms/internal/logic/utility.(*sUtility).GetIPCity(0xc000e93710?, {0x9673020?, 0xc00f33e6e0?}, {0xc08d37b700?, 0xc031d3ffc0?})
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/utility/utility.go:540 +0x2b
gtcms/internal/logic/spider.(*sSpider).IsSpider(0x13?, {0x9673020, 0xc00fa7c220}, 0x0?, {0x2, {0xc031d3ffd0, 0xc}, {0xc08d37b700, 0xe}, {0xc041f52000, ...}, ...})
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/spider/spider.go:231 +0x148
gtcms/internal/logic/site.(*sSiteChild).GetSiteByDomainName.func1()
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/site/site.go:132 +0x391
gtcms/internal/logic/site.(*sSiteChild).GetSiteByDomainName(0xc00bbde080, {0x9673020, 0xc00fa7c220}, {0xc041f52000, 0x13}, {0xc05e11e004, 0x14})
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/site/site.go:168 +0x237
gtcms/internal/logic/utility.(*sUtility).Router(0x0?, 0xc061732000)
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/utility/utility.go:138 +0x229
gtcms/internal/logic/middleware.(*sMiddleware).Router.func1()
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/middleware/middleware.go:82 +0x34
golang.org/x/sync/singleflight.(*Group).doCall.func2(0xc0792dbf1e, 0xc07daa5130, 0x7f7de60bd108?)
	/home/pc/go/pkg/mod/golang.org/x/sync@v0.7.0/singleflight/singleflight.go:198 +0x6f
golang.org/x/sync/singleflight.(*Group).doCall(0x1316180?, 0xc031d54750?, {0xc05e11e090?, 0x27?}, 0xc00fa7c310?)
	/home/pc/go/pkg/mod/golang.org/x/sync@v0.7.0/singleflight/singleflight.go:200 +0xa5
golang.org/x/sync/singleflight.(*Group).Do(0xc00ffe0970, {0xc05e11e090, 0x27}, 0xc047140100?)
	/home/pc/go/pkg/mod/golang.org/x/sync@v0.7.0/singleflight/singleflight.go:113 +0x165
gtcms/internal/logic/middleware.(*sMiddleware).Router(0xc00ffe0970, 0xc061732000)
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/middleware/middleware.go:81 +0x3a9
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next.func1.1()
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:55 +0x25
github.com/gogf/gf/v2/net/ghttp.niceCallFunc(0x0?)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_func.go:61 +0x3e
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next.func1({0x0?, 0x0?})
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:54 +0xaa
github.com/gogf/gf/v2/util/gutil.Try({0x9673020?, 0xc00fa7c220?}, 0x17f365d5e473b9fa?)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/util/gutil/gutil_try_catch.go:36 +0x71
github.com/gogf/gf/v2/util/gutil.TryCatch({0x9673020, 0xc00fa7c220}, 0x89777b?, 0xc0792dc330)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/util/gutil/gutil_try_catch.go:49 +0x39
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next(0xc021016080)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:49 +0x154
gtcms/internal/logic/middleware.(*sMiddleware).HandlerResponse(0x0?, 0xc061732000)
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/middleware/middleware.go:194 +0x3a
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next.func1.1()
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:55 +0x25
github.com/gogf/gf/v2/net/ghttp.niceCallFunc(0x0?)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_func.go:61 +0x3e
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next.func1({0x34?, 0x15143dc?})
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:54 +0xaa
github.com/gogf/gf/v2/util/gutil.Try({0x9673020?, 0xc00fa7c220?}, 0x1506c4a?)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/util/gutil/gutil_try_catch.go:36 +0x71
github.com/gogf/gf/v2/util/gutil.TryCatch({0x9673020, 0xc00fa7c220}, 0x965b7f8?, 0xc0792dc6d0)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/util/gutil/gutil_try_catch.go:49 +0x39
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next(0xc021016080)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:49 +0x154
gtcms/internal/logic/middleware.(*sMiddleware).SetCORSOptions(0x0?, 0xc061732000)
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/middleware/middleware.go:253 +0x90
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next.func1.1()
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:55 +0x25
github.com/gogf/gf/v2/net/ghttp.niceCallFunc(0x40474c?)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_func.go:61 +0x3e
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next.func1({0x0?, 0x0?})
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:54 +0xaa
github.com/gogf/gf/v2/util/gutil.Try({0x9673020?, 0xc00fa7c220?}, 0x40dc0a?)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/util/gutil/gutil_try_catch.go:36 +0x71
github.com/gogf/gf/v2/util/gutil.TryCatch({0x9673020, 0xc00fa7c220}, 0x7f7dbe1cd6b8?, 0xc0792dca30)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/util/gutil/gutil_try_catch.go:49 +0x39
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next(0xc021016080)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:49 +0x154
gtcms/internal/logic/middleware.(*sMiddleware).NeverDoneCtx(0x40dfe7?, 0xc061732000)
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/middleware/middleware.go:119 +0x15a
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next.func1.5()
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:96 +0x2f
github.com/gogf/gf/v2/net/ghttp.niceCallFunc(0x571894?)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_func.go:61 +0x3e
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next.func1({0xc0002f1fb0?, 0x2a?})
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:95 +0x328
github.com/gogf/gf/v2/util/gutil.Try({0x9672e28?, 0xc01a304510?}, 0x14b9eca?)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/util/gutil/gutil_try_catch.go:36 +0x71
github.com/gogf/gf/v2/util/gutil.TryCatch({0x9672e28, 0xc01a304510}, 0x0?, 0xc0792dcdc8)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/util/gutil/gutil_try_catch.go:49 +0x39
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next(0xc021016080)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:49 +0x154
github.com/gogf/gf/v2/net/ghttp.internalMiddlewareServerTracing(0xc061732000)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_middleware_tracing.go:79 +0x965
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next.func1.5()
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:96 +0x2f
github.com/gogf/gf/v2/net/ghttp.niceCallFunc(0x571894?)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_func.go:61 +0x3e
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next.func1({0x34630b8a000?, 0xc031f52740?})
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:95 +0x328
github.com/gogf/gf/v2/util/gutil.Try({0x9672e28?, 0xc01a304300?}, 0x3?)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/util/gutil/gutil_try_catch.go:36 +0x71
github.com/gogf/gf/v2/util/gutil.TryCatch({0x9672e28, 0xc01a304300}, 0xc01a304300?, 0xc0792dd990)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/util/gutil/gutil_try_catch.go:49 +0x39
github.com/gogf/gf/v2/net/ghttp.(*middleware).Next(0xc021016080)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_request_middleware.go:49 +0x154
github.com/gogf/gf/v2/net/ghttp.(*Server).ServeHTTP(0xc031f44a80, {0x9671830?, 0xc07dd4c380}, 0xc04bb0e900)
	/home/pc/go/pkg/mod/github.com/gogf/gf/v2@v2.7.1/net/ghttp/ghttp_server_handler.go:88 +0x425
net/http.HandlerFunc.ServeHTTP(0x0?, {0x9671830?, 0xc07dd4c380?}, 0x46b1ce?)
	/usr/local/go/src/net/http/server.go:2122 +0x2f
net/http.serverHandler.ServeHTTP({0xc01a304150?}, {0x9671830, 0xc07dd4c380}, 0xc04bb0e900)
	/usr/local/go/src/net/http/server.go:2936 +0x316
net/http.(*conn).serve(0xc07dcea510, {0x9672e28, 0xc031e03440})
	/usr/local/go/src/net/http/server.go:1995 +0x612
created by net/http.(*Server).Serve
	/usr/local/go/src/net/http/server.go:3089 +0x5ed