502 Proxy Error

  • Editing and saving any page then viewing any page causes 502 Proxy Error after several minutes of waiting if TEC plugin is active. isitdownrightnow.com shows the site as inaccessible. At some point the site comes back online. Not sure how long, I have tested again in 15 minutes, it could be less than that.

    After deactivating TEC the problem does not occur.

    Second problem: Viewing the Calendar page causes 502 Proxy Error without any edits to pages.

    I have tried:

    • increasing several PHP variables (PHP Time Limit, PHP Max Input Vars, PHP Mem Limit).
    • Clearing server cache
    • Turn on DEBUG in wp-config. Nothing of interest appears in debug.log
    • Deactivate all nonessential plugins
    • uninstall TEC and reinstall
    • Copy everything to a staging site on different webhost. After page edit/save, it works sometimes, other times it takes a very long time to display a page, however it does not generate a 502 error. Also, viewing Calendar page works. So it’s better, but still not working reliably. Maybe this indicates there might be a server configuration issue?

    Any ideas of what I should look for or try?

    Live site (TEC is currently deactivated) is on Hostmonster:

    TEC 6.10.1.1
    Theme: Avada 7.11.14
    WordPress 6.7.2
    PHP 8.2.18

    Staging site (TEC is active) is on Siteground, same versions of everything except

    PHP 8.2.27

    The page I need help with: [log in to see the link]

Viewing 2 replies - 1 through 2 (of 2 total)
  • Plugin Support tristan083

    (@tristan083)

    Hi @paul-hartman ,

    Thank you for reaching out.

    I recognize how challenging this must be; but, let me try to assist you here to the best of my abilities.

    A 502 error usually mean server resources (memory, CPU, storage, network) depletion. Because of this the server is unable to handle additional requests. This can also mean the server is awaiting data from the database that is taking a long time. In that regard, I would recommend going through our The Calendar is Loading Slowly knowledgebase article for insights and steps you can take to alleviate the situation.

    Thread Starter Paul Hartman

    (@paul-hartman)

    Thank you for the reply. I went through The Calendar Is Loading Slowly article but none of the suggestions were helpful:

    There are zero events.
    There are 2 venues.
    There are 2 organizers.
    Number of events to show per page in list view: 3
    Number of events to show per day: 3
    Month View Cache is enabled
    Recurring events: There are no recurring events (not using TEC Pro).
    Move to trash events older than: Disabled (there are no old events)
    Merge duplicate Venues & Organizers: There are no duplicates.

    This website used TEC 4 years ago, but they stopped using it shortly thereafter. I just reinstalled the plugin because now they want the calendar.

    The main issue is I edit and save a page totally unrelated to TEC (such as a test page with not much on it) and when I try to view that page it takes forever and then gets a 502 error (sometimes 404). If I try to view the site using a different browser it’s the same problem — the site is basically offline for some period of time (many minutes).

    If I deactivate the TEC plugin I can edit and save pages with no issues. Somehow TEC is interfering with editing/saving pages. Is there any debugging technique that I haven’t tried yet that I can use to see what is going on?

Viewing 2 replies - 1 through 2 (of 2 total)
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