VITCIE info: MySQL Query Error

Time: 2019-9-23 5:27am
Script: /myhome.php

SQL: select message,posttime from vte_user_jiaoliu where userid=
Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
Errno.: 1064

An error report has been dispatched to our administrator.