Need help running ATM9 server

[Hollywood0967]

Heya, i've been able to successfully run a vanilla minecraft server, but not a modded one. I am trying to run ATM9 with a few additional mods on top of the base pack. I'm at my wits end trying to figure out the cause of the failure. No matter how much RAM I allocate or what version of the modpack I try to run, it just isn't cooperating. The container logs always end with "Minecraft server failed... exitcode: 137". Since I doubt this is a bug, I am creating as a discussion thread instead :)

Commented out auto-install of modpack because this was only used during troubleshooting, and encountered the same failure. I plan to perform a manual install of the modpack once I can get it working because I am making additions on top of it for server and client versions.

Please see attached log files. If requested, I can provide the zipped mod files via google drive link. The file is too big to share here.
debug.log
latest.log

Steps to repeat:

1. Create docker-compose.yml and save contents
2. Run using docker compose up -d to establish basic forgeserver
3. Shut down with docker compose down to prepare for next changes
4. Transfer mod files to temp folder, unzip, and paste to data folder
5. Run server again and inspect live logs with docker compose logs -f
6. Observe clientside mods are disabled automatically. Forgeserver begins loading mods, halts at stage of loading AlmostUnified. No error seems to be present in logs.

docker-compose.yml

services:
mc:
image: itzg/minecraft-server
tty: true
stdin_open: true
ports:
- "25501:25501"
- "25577:25577"
environment:
EULA: "TRUE"
CF_API_KEY: $$2a$$10$$VdoUPQUswvxEe1lFqUcL6u2jQIizsP2QVNHYPSj.JQ29ZS6KmfjYa
#TYPE: AUTO_CURSEFORGE
#CF_PAGE_URL: https://www.curseforge.com/minecraft/modpacks/all-the-mods-9/files/6045443
TYPE: FORGE
VERSION: "1.20.1"
FORGE_VERSION: "47.3.11"
CF_EXCLUDE_MODS:
INIT_MEMORY: 1G
MAX_MEMORY: 12G
volumes:
# attach the relative directory 'data' to the container's /data path
- ./data:/data