diff --git a/contest/models.py b/contest/models.py
index 1e4f45a..2708bcf 100644
--- a/contest/models.py
+++ b/contest/models.py
@@ -120,6 +120,9 @@ class ContestRank(models.Model):
     # key 是比赛题目的id
     submission_info = JSONField(default={})
 
+    class Meta:
+        db_table = "contest_rank"
+
     def update_rank(self, submission):
         if not submission.contest_id or submission.contest_id != self.contest_id:
             raise ValueError("Error submission type")
diff --git a/group/models.py b/group/models.py
index b399246..a2db074 100644
--- a/group/models.py
+++ b/group/models.py
@@ -37,5 +37,6 @@ class JoinGroupRequest(models.Model):
     # 是否处理
     status = models.BooleanField(default=False)
     accepted = models.BooleanField(default=False)
+
     class Meta:
         db_table = "join_group_request"
diff --git a/mq/scripts/mq.py b/mq/scripts/mq.py
index 47231da..5e16edf 100644
--- a/mq/scripts/mq.py
+++ b/mq/scripts/mq.py
@@ -39,20 +39,21 @@ class MessageQueue(object):
                 logger.warning("Submission user does not exist, submission_id: " + submission_id)
                 continue
 
-            if submission.result == result["accepted"] and not submission.contest_id:
+            if not submission.contest_id:
                 # 更新普通题目的 ac 计数器
-                try:
-                    problem = Problem.objects.get(id=submission.problem_id)
-                    problem.total_accepted_number += 1
-                    problem.save()
-                except Problem.DoesNotExist:
-                    logger.warning("Submission problem does not exist, submission_id: " + submission_id)
-                    continue
+                if submission.result == result["accepted"]:
+                    try:
+                        problem = Problem.objects.get(id=submission.problem_id)
+                        problem.total_accepted_number += 1
+                        problem.save()
+                    except Problem.DoesNotExist:
+                        logger.warning("Submission problem does not exist, submission_id: " + submission_id)
+                        continue
 
-                problems_status = user.problems_status
-                problems_status["problems"][str(problem.id)] = 1
-                user.problems_status = problems_status
-                user.save()
+                    problems_status = user.problems_status
+                    problems_status["problems"][str(problem.id)] = 1
+                    user.problems_status = problems_status
+                    user.save()
 
                 # 普通题目的话，到这里就结束了
                 continue
diff --git a/problem/models.py b/problem/models.py
index adb7dd4..331f003 100644
--- a/problem/models.py
+++ b/problem/models.py
@@ -45,6 +45,7 @@ class AbstractProblem(models.Model):
     total_accepted_number = models.IntegerField(default=0)
 
     class Meta:
+        db_table = "problem"
         abstract = True
 
 
diff --git a/utils/xss_filter.py b/utils/xss_filter.py
index 825fbc9..337f0a5 100644
--- a/utils/xss_filter.py
+++ b/utils/xss_filter.py
@@ -38,7 +38,7 @@ class XssHtml(HTMLParser):
                   'p', 'div', 'em', 'span', 'h1', 'h2', 'h3', 'h4',
                   'h5', 'h6', 'blockquote', 'ul', 'ol', 'tr', 'th', 'td',
                   'hr', 'li', 'u', 'embed', 's', 'table', 'thead', 'tbody',
-                  'caption', 'small', 'q', 'sup', 'sub']
+                  'caption', 'small', 'q', 'sup', 'sub', 'font']
     common_attrs = ["style", "class", "name"]
     nonend_tags = ["img", "hr", "br", "embed"]
     tags_own_attrs = {
@@ -46,6 +46,7 @@ class XssHtml(HTMLParser):
         "a": ["href", "target", "rel", "title"],
         "embed": ["src", "width", "height", "type", "allowfullscreen", "loop", "play", "wmode", "menu"],
         "table": ["border", "cellpadding", "cellspacing"],
+        "font": ["color"]
     }
 
     def __init__(self, allows=[]):