Just did a research quickly, and I think you mean the video stabilizer (shake removal),
This crash might be a bug with the plugin or you are spamming a key/mouse button causing it to glitch out like when I want to stop the ram preview rendering so I can see what it looks like,
Can you record a video of the stabilizer working without you interfering with it just so we can see if you are causing something to happen or if it is happening on its own?