Error Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission

Hello I am getting this error.

Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

 

The problem is that the hosting need that I configured the security using a web.config special from them, please help.

I can no change the web.config
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