E: means error. S: means solution
1. E: “connect database fail”,
    S:  Please input the corret database name, database account or password
   S: to fix it, should use chmod 777 to t4 pack folder
3. E: Website's image loss after installation.
    S: Note down the current url of page loss, login DB and open DB table “web_config”, search “rela_dir” and modify it to the url of your template web address.