ERROR: Something went really wrong! OT-node shutting down... SequelizeConnectionError: connect ETIMEDOUT

[ethereum1729]

Issue description

Node was running normally previously.

Yesterday (31 March 2022), suddenly node stopped running with error messages (described below).

Expected behavior

Node run normally.

Actual behavior

Node stopped running. No more transactions were made, as checked in the Polygon PoS Chain Testnet Explorer.

Steps to reproduce the problem

1. Follow Setup instructions (Dockerless)
2. Node ran normally without problems for weeks.
3. Suddenly (without doing anything on my part), node had errors and shut down.

Specifications

• Node version: v6
• Platform: Linux Ubuntu 20.04 (LTS) x64

Error logs

INFO: Node is busy. [2022-03-31 02:28:17] INFO: Sending response from Q...X to Q...4: event=/store; (The above is repeated multiple times)

[2022-03-31 02:29:10] INFO: GET: /publish/result/f31...8f request received [2022-03-31 02:29:41] ERROR: Something went really wrong! OT-node shutting down... SequelizeConnectionError: connect ETIMEDOUT [2022-03-31 02:29:41] USERLVL: Found error will be reported to Telemetry: CommandExecutorError Warning: got packets out of order. Expected 2 but received 0 Warning: got packets out of order. Expected 2 but received 0 Warning: got packets out of order. Expected 2 but received 0 Warning: got packets out of order. Expected 2 but received 0 Warning: got packets out of order. Expected 2 but received 0