NPM server crash

[bepp-boop]

Background: Proxmox server that run NPM for the rest of my service, I used cloudflare domain to make it accessible online
Issues: I have file browser that allow you to upload file in it. The issues is when I upload something that is like more than 200MB, the entire server would crash. Not the file browser itself but rather the NPM server. I checked the usage but it barely change, very low RAM/CPU usage, maybe like 2 percent CPU and 20 percent RAM, I config it so that it can handle big file and also have auto worker_connect. But overall it doesnt really improve at all. If anyone can help me solve this issues.