diff --git a/extend/workermans/model/Base.php b/extend/workermans/model/Base.php
index 1e1447a..d78018e 100644
--- a/extend/workermans/model/Base.php
+++ b/extend/workermans/model/Base.php
@@ -361,14 +361,21 @@ class Base extends Model
         $table = Redis::get('time_discount:info');
         if($table) {
             $table_arr = json_decode($table, true);
-            foreach ($table_arr as $k => $v) {
-                if(!Gateway::getClientCountByGroup($v)) {
-                    print_r($v . '过期');
-                    unset($table_arr[$k]);
-                    Redis::del($v);
+            if(is_array($table_arr)) {
+                foreach ($table_arr as $k => $v) {
+                    if(!Gateway::getClientCountByGroup(str_replace(':time_discount', '', $v))) {
+                        print_r($v . '过期');
+                        unset($table_arr[$k]);
+                        Redis::del($v);
+                    }
+                }
+                Redis::set('time_discount:info', json_encode($table_arr));
+            }else {
+                if(!Gateway::getClientCountByGroup(str_replace(':time_discount', '', $table_arr))) {
+                    print_r($table_arr . '过期');
+                    Redis::del($table_arr);
                 }
             }
-            Redis::set('time_discount:info', json_encode($table_arr));
         }
     }