I actually want to add Keithy to tell him,so he can post him by himself,but since his afk,so I have to since almost everybody can't wait for playing it on the map.

First,you need Gmad Extractor.Gmad Extractor will extracting your .gm or .gma file at your addons.
Second,Extract whole thing from the File.At your steamdirectory/steamapps/common/garrysmod/garrysmod/
Third,Start up the game and Start playing the map through "Start New Game"

This is worked for me,I think causes from loading the lua or the model or the sound,idk came from cause idk how to open mdmp,I know open with notepad,but my computer cant translate the code.

Sorry about my english.
And Gbros,I've seen your so aggresive,so I don't seems to care to your offensives replies.
That doesn't mean I hate you,but I don't care when someone anger/having bad mood.

No Problem if you guys got fixed with these methods.If still crash,try to use Keithy's solutions.Start the game w/ gm_construct,and changelevel fnaf2noevents.