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({0x1330520?, 0xa093020})
	/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({0x1330520, 0xa093020})
	/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({0xc04591b200?, 0x1a?})
	/home/pc/ng-workspace/gtcms/uapi/utility/iploc/iploc.go:67 +0x6a
gtcms/utility/iploc.IPLoc({0xc04591b200, 0xe})
	/home/pc/ng-workspace/gtcms/uapi/utility/iploc/iploc.go:84 +0x65
gtcms/internal/logic/utility.(*sUtility).GetIPCity(0xc02606d8c0?, {0x96730c0?, 0xc03a786140?}, {0xc04591b200?, 0xc01d7f3bb0?})
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/utility/utility.go:540 +0x2b
gtcms/internal/logic/spider.(*sSpider).IsSpider(0x13?, {0x96730c0, 0xc0096ff3f0}, 0x0?, {0x2, {0xc01d7f3c30, 0xc}, {0xc04591b200, 0xe}, {0xc036539290, ...}, ...})
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/spider/spider.go:231 +0x148
gtcms/internal/logic/site.(*sSite).GetSiteByDomainName.func1()
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/site/site.go:137 +0x391
gtcms/internal/logic/site.(*sSite).GetSiteByDomainName(0xc000bf69c0, {0x96730c0, 0xc0096ff3f0}, {0xc036539290, 0x13}, {0xc04591b1e4, 0x11})
	/home/pc/ng-workspace/gtcms/uapi/internal/logic/site/site.go:173 +0x237
gtcms/internal/logic/utility.(*sUtility).Router(0xc0a4285ed8?, 0xc0a4f6bb80)
	/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(0xc08541ff1e, 0xc0a5108f00, 0x7f1e8fcd0108?)
	/home/pc/go/pkg/mod/golang.org/x/sync@v0.7.0/singleflight/singleflight.go:198 +0x6f
golang.org/x/sync/singleflight.(*Group).doCall(0x13161a0?, 0xc02cef5b00?, {0xc06e687a10?, 0x24?}, 0xc0096ff450?)
	/home/pc/go/pkg/mod/golang.org/x/sync@v0.7.0/singleflight/singleflight.go:200 +0xa5
golang.org/x/sync/singleflight.(*Group).Do(0xc00aa82940, {0xc06e687a10, 0x24}, 0xc088c461c0?)
	/home/pc/go/pkg/mod/golang.org/x/sync@v0.7.0/singleflight/singleflight.go:113 +0x165
gtcms/internal/logic/middleware.(*sMiddleware).Router(0xc00aa82940, 0xc0a4f6bb80)
	/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({0xc038209dbd?, 0xc0a42862b0?})
	/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({0x96730c0?, 0xc0096ff3f0?}, 0x0?)
	/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({0x96730c0, 0xc0096ff3f0}, 0x89777b?, 0xc085420330)
	/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(0xc0a514a5a0)
	/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?, 0xc0a4f6bb80)
	/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?, 0x151447c?})
	/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({0x96730c0?, 0xc0096ff3f0?}, 0xa?)
	/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({0x96730c0, 0xc0096ff3f0}, 0x965b888?, 0xc0854206d0)
	/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(0xc0a514a5a0)
	/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?, 0xc0a4f6bb80)
	/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({0x140?, 0x13f?})
	/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({0x96730c0?, 0xc0096ff3f0?}, 0x40?)
	/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({0x96730c0, 0xc0096ff3f0}, 0x7f1e67cd4848?, 0xc085420a30)
	/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(0xc0a514a5a0)
	/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?, 0xc0a4f6bb80)
	/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({0xc00032dfb0?, 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({0x9672ec8?, 0xc0ba7a8a80?}, 0xc0a04d4d80?)
	/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({0x9672ec8, 0xc0ba7a8a80}, 0x0?, 0xc085420dc8)
	/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(0xc0a514a5a0)
	/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(0xc0a4f6bb80)
	/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({0x0?, 0xc0455079c8?})
	/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({0x9672ec8?, 0xc0ba7a8780?}, 0x0?)
	/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({0x9672ec8, 0xc0ba7a8780}, 0xc0ba7a8780?, 0xc085421990)
	/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(0xc0a514a5a0)
	/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(0xc045351c00, {0x96718d0?, 0xc0a511a540}, 0xc09a53c500)
	/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?, {0x96718d0?, 0xc0a511a540?}, 0x46b1ce?)
	/usr/local/go/src/net/http/server.go:2122 +0x2f
net/http.serverHandler.ServeHTTP({0xc0ba7a8480?}, {0x96718d0, 0xc0a511a540}, 0xc09a53c500)
	/usr/local/go/src/net/http/server.go:2936 +0x316
net/http.(*conn).serve(0xc0a5135290, {0x9672ec8, 0xc02db43650})
	/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