--- fenglin/bbs/post.php	2025/04/04 07:57:04	1.2
+++ fenglin/bbs/post.php	2025/04/04 15:07:21	1.3
@@ -252,13 +252,12 @@ function upload_del(id)
         switch (ret.return.code)
         {
 			case 0: // OK
+			case 1: // Already deleted
 				document.getElementById("attachment_" + id).style.display = "none";
 				refresh_err_msg(errorFieldMap);
 				break;
 			case -1: // Input validation failed
-				ret.return.errorFields.forEach(field => {
-					errorFieldMap.set("err_msg_" + field.id, "<br />" + field.errMsg);
-				});
+				errorFieldMap.set("err_msg_attachment", "<br />" + ret.return.message);
 				refresh_err_msg(errorFieldMap);
 				break;
 			case -2: // Internal error