not able to connect the SQL server database.

Question

Hi, this the strange issue is coming in my application some time I am getting the error message like, but when i recycle the application pool then its wroking properly.

Error Description   : Error occurred while processing your request. Please contact your system administrator for details.
Exception Message   : The type initializer for 'Microsoft.ApplicationBlocks.Data.SqlHelperParameterCache' threw an exception.
Stack Trace         : at Microsoft.ApplicationBlocks.Data.SqlHelperParameterCache.GetSpParameterSet(String connectionString, String spName)