The error is that you switched to DirectX11 but you don't actually have it installed.
The error specifcally means that your system is failing to understand the DirectX API initialization parameter it was passed, and returning to our engine that exact error. Typically, this is caused from you running Windows 7 but not keeping it up to date, thus the entire DirectX11 component is missing. Running Windows Update will rectify this, or installing the
Platform Update for Windows 7.
Alternatively, you can shortcut using DirectX11/10 by starting OpenGL 3.2 (as your GPU supports it apparently) instead by changing the value
r_rhirenderfamily in kexengine.cfg (found in your Turok2 install folder) to "opengl". If you are missing kexengine.cfg, create an autoexec.cfg with a text editor and add the line
seta r_rhirenderfamily "opengl". (Don't make a kexengine.cfg, as the engine wont be able to set any defaults, including controls.)
Alternatively to that, you can put "
+r_rhirenderfamily opengl" (without quotes) into a launch parameter if you know how to do that (command prompt or what not).