Garry's Mod Map Help

I recently made a map on hammer called gm_button_build and released it on workshop and so far it has been successful. I would like to update it and keep my subscribers interested. My problem is that I tried adding water at one point, nothing would work, so I removed it and replaced that area with a village. Now whenever I try and play the unreleased map it crashes Garry’s Mod on startup. Is there anything I can do.