diff --git a/api/controller/Question.go b/api/controller/Question.go
index 99aeef0..d9e2cc5 100644
--- a/api/controller/Question.go
+++ b/api/controller/Question.go
@@ -218,6 +218,10 @@ func (r *Question) GetQuestionUnlockStatus(c *gin.Context) {
 			continue
 		}
 
+		if single.ValidDate == nil {
+			continue
+		}
+
 		// 判断是否还在有效期内
 		t := time.Time(*single.ValidDate)
 		now := time.Now()