io_thps_scene not found

[eduardonwa]

I can't seem to export a very simple scene because it keeps on saying that "io_thps_scene" not found

I created a very simple scene just to learn the ropes of exporting and using the plug-in etc, but when I tried to export I get the error message saying that "io_thps_scene" was not found, did i forget to do something while installing the add-on?

Many thanks

People keep on saying that is better to use Blender 2.79b or something but I quite like the UI on this version, would love it if I could stick to this one.

Windows 10
Blender version: 2.8.4