Playing Outrun mode with 5-6 people doesn't work

Hello I've been trying to play nfs u2 outrun mode with 5 people, but when i start, the game crashes, any way to fix this problem? It works with 4 people, but it doesn't with 5, even though we all are in game lobby. We tried running URL race with 5 people, it worked fine, but Outrun doesn't. We are using gameranger + NFS U2 Exopts