diff --git a/middleware/auth.go b/middleware/auth.go
index 85c46e282..a5d283d26 100644
--- a/middleware/auth.go
+++ b/middleware/auth.go
@@ -13,6 +13,7 @@ import (
 	"github.com/QuantumNous/new-api/model"
 	"github.com/QuantumNous/new-api/service"
 	"github.com/QuantumNous/new-api/setting/ratio_setting"
+	"github.com/QuantumNous/new-api/types"
 
 	"github.com/gin-contrib/sessions"
 	"github.com/gin-gonic/gin"
@@ -195,7 +196,7 @@ func TokenAuth() func(c *gin.Context) {
 			}
 			c.Request.Header.Set("Authorization", "Bearer "+key)
 		}
-		// 检查path包含/v1/messages 或 /v1/models 
+		// 检查path包含/v1/messages 或 /v1/models
 		if strings.Contains(c.Request.URL.Path, "/v1/messages") || strings.Contains(c.Request.URL.Path, "/v1/models") {
 			anthropicKey := c.Request.Header.Get("x-api-key")
 			if anthropicKey != "" {
@@ -256,7 +257,7 @@ func TokenAuth() func(c *gin.Context) {
 				return
 			}
 			if common.IsIpInCIDRList(ip, allowIps) == false {
-				abortWithOpenAiMessage(c, http.StatusForbidden, "您的 IP 不在令牌允许访问的列表中")
+				abortWithOpenAiMessage(c, http.StatusForbidden, "您的 IP 不在令牌允许访问的列表中", types.ErrorCodeAccessDenied)
 				return
 			}
 			logger.LogDebug(c, "Client IP %s passed the token IP restrictions check", clientIp)
diff --git a/middleware/distributor.go b/middleware/distributor.go
index a33404726..95fa64a30 100644
--- a/middleware/distributor.go
+++ b/middleware/distributor.go
@@ -114,11 +114,11 @@ func Distribute() func(c *gin.Context) {
 					//	common.SysError(fmt.Sprintf("渠道不存在：%d", channel.Id))
 					//	message = "数据库一致性已被破坏，请联系管理员"
 					//}
-					abortWithOpenAiMessage(c, http.StatusServiceUnavailable, message, string(types.ErrorCodeModelNotFound))
+					abortWithOpenAiMessage(c, http.StatusServiceUnavailable, message, types.ErrorCodeModelNotFound)
 					return
 				}
 				if channel == nil {
-					abortWithOpenAiMessage(c, http.StatusServiceUnavailable, fmt.Sprintf("分组 %s 下模型 %s 无可用渠道（distributor）", usingGroup, modelRequest.Model), string(types.ErrorCodeModelNotFound))
+					abortWithOpenAiMessage(c, http.StatusServiceUnavailable, fmt.Sprintf("分组 %s 下模型 %s 无可用渠道（distributor）", usingGroup, modelRequest.Model), types.ErrorCodeModelNotFound)
 					return
 				}
 			}
diff --git a/middleware/utils.go b/middleware/utils.go
index 24caa83c7..f198af81f 100644
--- a/middleware/utils.go
+++ b/middleware/utils.go
@@ -5,13 +5,14 @@ import (
 
 	"github.com/QuantumNous/new-api/common"
 	"github.com/QuantumNous/new-api/logger"
+	"github.com/QuantumNous/new-api/types"
 	"github.com/gin-gonic/gin"
 )
 
-func abortWithOpenAiMessage(c *gin.Context, statusCode int, message string, code ...string) {
+func abortWithOpenAiMessage(c *gin.Context, statusCode int, message string, code ...types.ErrorCode) {
 	codeStr := ""
 	if len(code) > 0 {
-		codeStr = code[0]
+		codeStr = string(code[0])
 	}
 	userId := c.GetInt("id")
 	c.JSON(statusCode, gin.H{