System.Typeinitilization exception occured in Oracle.ManagedDataAccess.Dll

I am working on existing .net web application which calls web service (uses oracle database). I have updated oracle.managedDataaccess with latest version through nuget in web service project. While debugging the code, i got above mentioned exception when debugger hits the linq query in code. When i trace the log i got internal error exception that says...

innerException":{"message":"An error has occurred.","exceptionMessage":"An error occurred creating the configuration section handler for oracle.manageddataaccess.client: Could not load file or assembly 'Oracle.ManagedDataAccess, Version=4.122.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) (C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config\machine.config line 14)","exceptionType":"System.Configuration.ConfigurationErrorsException