Why does my spaceplane keep flipping and exploding after touchdown? I'm coming in as slow as i can.

Tryna create a small one man shuttle. Re-entry went great but I've tried this landing so many times now, even with lower speeds (\~40m/s) but as soon as the main gear touches down, it bounces up and pitches the nose towards the runway and disaster strikes. Or I touch down properly, but it just swerves to a side and flips over.