diff --git a/models/config/proxy.go b/models/config/proxy.go
index 1efaf38..f4ddba5 100644
--- a/models/config/proxy.go
+++ b/models/config/proxy.go
@@ -218,6 +218,7 @@ func (cfg *BaseProxyConf) UnmarshalFromIni(prefix string, name string, section i
 		cfg.HealthCheckUrl = s + cfg.HealthCheckUrl
 	}
 
+	cfg.Metas = make(map[string]string)
 	for k, v := range section {
 		if strings.HasPrefix(k, "meta_") {
 			cfg.Metas[strings.TrimPrefix(k, "meta_")] = v
diff --git a/utils/version/version.go b/utils/version/version.go
index 27eb88a..dac3974 100644
--- a/utils/version/version.go
+++ b/utils/version/version.go
@@ -19,7 +19,7 @@ import (
 	"strings"
 )
 
-var version string = "0.31.0"
+var version string = "0.31.1"
 
 func Full() string {
 	return version