Agent seems down every night

What's going wrong?

Since I moved to a new VPS every night at 3:05AM I getting email "Agent seems down".
The apps still working, no errors in the logs.
In app.pm2.io I see try to connect but without success only after link it again it's back to work.

Am I missing something?

--- PM2 report ----------------------------------------------------------------
Date                 : Sun Jul 25 2021 03:17:03 GMT+0000 (Coordinated Universal Time)
===============================================================================
--- Daemon -------------------------------------------------
pm2d version         : 5.1.0
node version         : 14.17.2
node path            : /usr/bin/pm2
argv                 : /usr/bin/node,/usr/lib/node_modules/pm2/lib/Daemon.js
argv0                : node
user                 : USER
uid                  : 1000
gid                  : 1000
uptime               : 12min
===============================================================================
--- CLI ----------------------------------------------------
local pm2            : 5.1.0
node version         : 14.17.2
node path            : /usr/bin/pm2
argv                 : /usr/bin/node,/usr/bin/pm2,report
argv0                : node
user                 : USER
uid                  : 1000
gid                  : 1000
===============================================================================
--- System info --------------------------------------------
arch                 : x64
platform             : linux
type                 : Linux
cpus                 : Intel Core Processor (Haswell, no TSX, IBRS)
cpus nb              : 6
freemem              : 1499160576
totalmem             : 6249259008
home                 : /home/USER
===============================================================================
--- PM2 list -----------------------------------------------
┌─────┬───────────┬─────────────┬─────────┬─────────┬──────────┬────────┬──────┬───────────┬──────────┬──────────┬──────────┬──────────┐
│ id  │ name      │ namespace   │ version │ mode    │ pid      │ uptime │ ↺    │ status    │ cpu      │ mem      │ user     │ watching │
└─────┴───────────┴─────────────┴─────────┴─────────┴──────────┴────────┴──────┴───────────┴──────────┴──────────┴──────────┴──────────┘
===============================================================================
--- Daemon logs --------------------------------------------
/home/USER/.pm2/pm2.log last 20 lines:
PM2        | 2021-07-25T03:04:46: PM2 log: Concurrent actions   : 2
PM2        | 2021-07-25T03:04:46: PM2 log: SIGTERM timeout      : 1600
PM2        | 2021-07-25T03:04:46: PM2 log: ===============================================================================
PM2        | 2021-07-25T03:04:46: PM2 log: PM2 successfully stopped
PM2        | 2021-07-25T03:04:46: PM2 log: ===============================================================================
PM2        | 2021-07-25T03:04:46: PM2 log: --- New PM2 Daemon started ----------------------------------------------------
PM2        | 2021-07-25T03:04:46: PM2 log: Time                 : Sun Jul 25 2021 03:04:46 GMT+0000 (Coordinated Universal Time)
PM2        | 2021-07-25T03:04:46: PM2 log: PM2 version          : 5.1.0
PM2        | 2021-07-25T03:04:46: PM2 log: Node.js version      : 14.17.2
PM2        | 2021-07-25T03:04:46: PM2 log: Current arch         : x64
PM2        | 2021-07-25T03:04:46: PM2 log: PM2 home             : /home/USER/.pm2
PM2        | 2021-07-25T03:04:46: PM2 log: PM2 PID file         : /home/USER/.pm2/pm2.pid
PM2        | 2021-07-25T03:04:46: PM2 log: RPC socket file      : /home/USER/.pm2/rpc.sock
PM2        | 2021-07-25T03:04:46: PM2 log: BUS socket file      : /home/USER/.pm2/pub.sock
PM2        | 2021-07-25T03:04:46: PM2 log: Application log path : /home/USER/.pm2/logs
PM2        | 2021-07-25T03:04:46: PM2 log: Worker Interval      : 30000
PM2        | 2021-07-25T03:04:46: PM2 log: Process dump file    : /home/USER/.pm2/dump.pm2
PM2        | 2021-07-25T03:04:46: PM2 log: Concurrent actions   : 2
PM2        | 2021-07-25T03:04:46: PM2 log: SIGTERM timeout      : 1600
PM2        | 2021-07-25T03:04:46: PM2 log: ===============================================================================

Start with the reported PM2 daemon log around 03:05, where PM2 stops and immediately starts again, and compare that event with the nightly "Agent seems down" notification. Investigate the VPS environment and PM2 connection behavior using the supplied report. Done means identifying the cause of the nightly disconnect and confirming that the agent remains connected without relinking.