Fix crash when RoomGame#onConnect doesn't exist
Fix crash when RoomGame#onConnect doesn't exist

Lauc1an/Perulink-Showdown,zek7rom/SpacialGaze,Git-Worm/City-PS,urkerab/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,ehk12/coregit,SolarisFox/Pokemon-Showdown,xfix/Pokemon-Showdown,DesoGit/Tsunami_PS,xCrystal/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,KewlStatics/Showdown-Template,azum4roll/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,svivian/Pokemon-Showdown,panpawn/Gold-Server,CharizardtheFireMage/Showdown-Boilerplate,Pikachuun/Pokemon-Showdown-SMCMDM,SolarisFox/Pokemon-Showdown,svivian/Pokemon-Showdown,Pikachuun/Pokemon-Showdown,EienSeiryuu/Pokemon-Showdown,Elveman/RPCShowdownServer,xfix/Pokemon-Showdown,ZestOfLife/FestiveLife,psnsVGC/Wish-Server,kotarou3/Krister-Pokemon-Showdown,KewlStatics/Shit,PS-Spectral/Spectral,KewlStatics/Alliance,Mystifi/Exiled,Vacate/Pokemon-Showdown,Zarel/Pokemon-Showdown,PS-Spectral/Spectral,AnaRitaTorres/Pokemon-Showdown,panpawn/Pokemon-Showdown,Hidden-Mia/Roleplay-PS,ShowdownHelper/Saffron,urkerab/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,EienSeiryuu/Pokemon-Showdown,Syurra/Pokemon-Showdown,Enigami/Pokemon-Showdown,Bryan-0/Pokemon-Showdown,jd4564/Pokemon-Showdown,panpawn/Gold-Server,Sora-League/Sora,AWailOfATail/Pokemon-Showdown,aakashrajput/Pokemon-Showdown,psnsVGC/Wish-Server,panpawn/Gold-Server,TbirdClanWish/Pokemon-Showdown,Pikachuun/Pokemon-Showdown,TbirdClanWish/Pokemon-Showdown,Alpha-Devs/Alpha-Server,Irraquated/Pokemon-Showdown,AbsolitoSweep/Absol-server,KewlStatics/Shit,xCrystal/Pokemon-Showdown,cadaeic/Pokemon-Showdown,azum4roll/Pokemon-Showdown,CharizardtheFireMage/Showdown-Boilerplate,Hidden-Mia/Roleplay-PS,Guernouille/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,svivian/Pokemon-Showdown,SkyeTheFemaleSylveon/Pokemon-Showdown,HoeenCoder/SpacialGaze,Bryan-0/Pokemon-Showdown,ZestOfLife/FestiveLife,zek7rom/SpacialGaze,kuroscafe/Showdown-Boilerplate,Flareninja/Showdown-Boilerplate,Lord-Haji/SpacialGaze,aakashrajput/Pokemon-Showdown,CreaturePhil/Showdown-Boilerplate,TheFenderStory/Pokemon-Showdown,urkerab/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,svivian/Pokemon-Showdown,panpawn/Pokemon-Showdown,KewlStatics/Pokeindia-Codes,jd4564/Pokemon-Showdown,Volcos/SpacialGaze,danpantry/Pokemon-Showdown,ShowdownHelper/Saffron,danpantry/Pokemon-Showdown,TheManwithskills/COC,Git-Worm/City-PS,Vacate/Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,kuroscafe/Paradox,sirDonovan/Pokemon-Showdown,Irraquated/Pokemon-Showdown,KewlStatics/Alliance,Wando94/Spite,ZestOfLife/PSserver,Enigami/Pokemon-Showdown,DesoGit/TsunamiPS,AbsolitoSweep/Absol-server,DarkSuicune/Pokemon-Showdown,aakashrajput/Pokemon-Showdown,Kokonoe-san/Glacia-PS,cadaeic/Pokemon-Showdown,Alpha-Devs/Alpha-Server,BlazingAura/Showdown-Boilerplate,kuroscafe/Paradox,jumbowhales/Pokemon-Showdown,Lauc1an/Perulink-Showdown,arkanox/MistShowdown,ehk12/coregit,xfix/Pokemon-Showdown,DarkSuicune/Pokemon-Showdown,kuroscafe/Showdown-Boilerplate,Alpha-Devs/OmegaRuby-Server,Zarel/Pokemon-Showdown,Alpha-Devs/OmegaRuby-Server,Lord-Haji/SpacialGaze,DesoGit/Tsunami_PS,AnaRitaTorres/Pokemon-Showdown,Volcos/SpacialGaze,ShowdownHelper/Saffron,BlazingAura/Showdown-Boilerplate,Elveman/RPCShowdownServer,AustinXII/Pokemon-Showdown,KewlStatics/Showdown-Template,Flareninja/Showdown-Boilerplate,Zarel/Pokemon-Showdown,AustinXII/Pokemon-Showdown,kotarou3/Krister-Pokemon-Showdown,DesoGit/TsunamiPS,DesoGit/Tsunami_PS,Ecuacion/Pokemon-Showdown,xfix/Pokemon-Showdown,TheFenderStory/Pokemon-Showdown,CreaturePhil/Showdown-Boilerplate,CreaturePhil/Showdown-Boilerplate,Kokonoe-san/Glacia-PS,AustinXII/Pokemon-Showdown,Mystifi/Exiled,xfix/Pokemon-Showdown,Pikachuun/Pokemon-Showdown-SMCMDM,QuiteQuiet/Pokemon-Showdown,Sora-League/Sora,TheManwithskills/COC,SkyeTheFemaleSylveon/Pokemon-Showdown,arkanox/MistShowdown,KewlStatics/Pokeindia-Codes,Enigami/Pokemon-Showdown,Mystifi/Exiled,Irraquated/Pokemon-Showdown,Lord-Haji/SpacialGaze,Syurra/Pokemon-Showdown,svivian/Pokemon-Showdown,Sora-League/Sora,Ecuacion/Pokemon-Showdown,xCrystal/Pokemon-Showdown,Enigami/Pokemon-Showdown,HoeenCoder/SpacialGaze,HoeenCoder/SpacialGaze,PS-Spectral/Spectral,ZestOfLife/PSserver,Guernouille/Pokemon-Showdown,Wando94/Spite,HoeenCoder/SpacialGaze