Launcher won't download beammp mod

Every time I start the launcher, it goes to download the mod but either says “bad gateway” and launches single player, or gives me this log.

“[7/7/2021 06:42:41] [INFO] Launcher version is up to date
[7/7/2021 06:42:41] [INFO] Game Version :
[7/7/2021 06:42:41] [INFO] Downloading mod please wait…
[7/7/2021 06:42:46] [ERROR] HTTP Get failed on Read
[7/7/2021 06:42:46] [INFO] Game Launched!
[7/7/2021 06:44:03] [ERROR] Game Closed! launcher closing soon”