I sent a quick patch to Valve that fixes a couple of issues with the patch released on Friday. It should be out within the next few hours.
• Fixed Lua errors when browsing models folders
• Fixed ragdoll crash
• Fixed TF2 map crash
Bear in mind that on Thursday Valve released quite a big update to the Source Engine. This means that some of your addons that hack away at the engine might have stopped working or might be causing you to crash. This isn’t something I can fix - so it’s up to you to seek out working updates for these addons.
I’m still working on the next big Garry’s Mod update. You can keep up with progress on my blog and on my twitter.