Beatrun leak (OLD)

[beatrun] Couldn't include file 'includes\modules\beatrun.lua' - File not found (@addons/beatrun/gamemodes/beatrun/gamemode/init.lua (line 2))

1. unknown - addons/beatrun/gamemodes/beatrun/gamemode/init.lua:2

I get this error but I did everything. The date and the chromium branch.
But I have three major questions: (might be the reason why it didn't work)

1 - How do I set it up properly? (I managed to get the gamemode out on the game but I don't think I did it properly)

2 - Which version I'm gonna play the beta in?(Normal, X32 or X64)

3 - I setted the date to 15 August 2021 but it didn't seem to work. (I don't know why.)

Please answer these 3 questions. I have spent my credits for this.