Don't consider no response as error

responses.go

@@ -1,6 +1,8 @@
 package main
 
 import (
+	"database/sql"
+	"errors"
 	"log"
 	"net/http"
 	"strconv"
@@ -142,7 +144,7 @@ func declareAPIAuthQuestionResponsesRoutes(router *gin.RouterGroup) {
 		q := c.MustGet("question").(*Question)
 
 		res, err := q.GetMyResponse(u, false)
-		if err != nil {
+		if err != nil && !errors.Is(err, sql.ErrNoRows) {
 			log.Printf("Unable to GetMyResponse(uid=%d;qid=%d;false): %s", u.Id, q.Id, err.Error())
 			c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": "An error occurs during response retrieval."})
 			return