We strongly recommend reinstalling the SAP .NET Connector 3.0 as the first step. It comes in both 32-bit and 64-bit versions, so ensure that the connector version is compatible with your operating system (How do I tell if my computer is running a 32-bit or a 64-bit version of Windows?). Additionally, during the installation process, in the ‘Optional setup steps‘ section, make sure to check the ‘Install assemblies to GAC’ option; it is not installed by default**.**