Halo CE MCC Modding Tools difficulties

Hi, I got some problems using the mod tools of Steam for Halo CE MCC, when I run halotagtest.exe and try to start a game, whatever the map I choose it doesn’t work and a light red message appear and disappear very quickly down here saying “event handler, ‘ss start game’ failed” or something like that, the one under is white.
“event handler 144 function failed”

I just need to be able to start a map so I can test them.

Try asking these guys. A discord modding community.