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Plesk shows 502 Bad Gateway error and service sw-engine is marked as stopped

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Natalia Astashenko
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Applicable to:

  • Plesk for Linux

Symptoms

  • Plesk shows 502 Bad Gateway error;

  • The service sw-engine is not running:

    # service sw-engine status
    ● sw-engine.service - Startup script for Panel sw-engine
    Loaded: loaded (/usr/lib/systemd/system/sw-engine.service; enabled; vendor preset: disabled)
    Active: inactive (dead) since Mon 2018-03-26 21:57:49 +07; 5min ago

Cause

sw-engine service is stopped. This may occur if upgrade attempt was unsuccessful or it was stopped manually.

Resolution

  1. Connect to the server via SSH.

  2. Start sw-engine service:

    # service sw-engine start

    Or start psa service:

    # service psa start

Additional info

[HUB] 502 Bad Gateway

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