“System.Security.Permissions。SecurityPermission, mscorlib, Version=4.0.0.0, Culture=中性，PublicKeyToken=b77a5c561934e089'失败。

I deployed my ASP.NET project on host but take this fail. I am trying to solve this issue for hours but could not. On my first page users enter email and password after click login button they navigate menu. All datas store in mysql db. After publish i could not see mysqldata.dll in bin folder so i have added manually.I deployed my ASP.NET project on host but take