The prevent any issue, it is recommended that you use
This is often because of one of the following reasons:
In all those cases, the simplest solution is to get a clean installation of NWN Diamond by following those instructions: Using NWN Diamond
This is because you are missing the override files, you can download them here: Hak Files.
You should have those 3 files in your <NWN>\override folder:
This is because you are using an older and unsupported version of NVIDIA graphic cards driver. Get the latest one: https://www.nvidia.com/Download/index.aspx
On Sinfar main hub, you don’t have to worry about getting involved into something that you don’t want. We have strict rules about that and tools. If the available tools are not an option, you can report them to Sinfar Staff.