diff --git a/internal/api/auth/auth.go b/internal/api/auth/auth.go
index cec540537..73a071548 100644
--- a/internal/api/auth/auth.go
+++ b/internal/api/auth/auth.go
@@ -3,6 +3,7 @@ package apiAuth
 import (
 	api "Open_IM/pkg/base_info"
 	"Open_IM/pkg/common/config"
+	"Open_IM/pkg/common/constant"
 	"Open_IM/pkg/common/log"
 	"Open_IM/pkg/common/token_verify"
 	"Open_IM/pkg/grpc-etcdv3/getcdv3"
@@ -66,7 +67,13 @@ func UserRegister(c *gin.Context) {
 	if reply.CommonResp.ErrCode != 0 {
 		errMsg := req.OperationID + " " + " UserRegister failed " + reply.CommonResp.ErrMsg + req.String()
 		log.NewError(req.OperationID, errMsg)
-		c.JSON(http.StatusInternalServerError, gin.H{"errCode": 500, "errMsg": errMsg})
+		if reply.CommonResp.ErrCode == constant.RegisterLimit {
+			c.JSON(http.StatusOK, gin.H{"errCode": constant.RegisterLimit, "errMsg": "用户注册被限制"})
+		} else if reply.CommonResp.ErrCode == constant.InvitationError {
+			c.JSON(http.StatusOK, gin.H{"errCode": constant.InvitationError, "errMsg": "邀请码错误"})
+		} else {
+			c.JSON(http.StatusInternalServerError, gin.H{"errCode": 500, "errMsg": errMsg})
+		}
 		return
 	}
 
diff --git a/internal/msg_transfer/logic/persistent_msg_handler.go b/internal/msg_transfer/logic/persistent_msg_handler.go
index c02c02739..817b3edb9 100644
--- a/internal/msg_transfer/logic/persistent_msg_handler.go
+++ b/internal/msg_transfer/logic/persistent_msg_handler.go
@@ -42,6 +42,7 @@ func (pc *PersistentConsumerHandler) Init() {
 			Name: "insert_mysql_msg_total",
 			Help: "The total number of msg insert mysql events",
 		})
+		prometheus.MustRegister(msgInsertMysqlProcessed)
 	}
 }