Support » Plugin: Simplest Gallery Plugin » Error uninstalling the plugin

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    I tried deactivating Simplest Galerry on WP 5.7 (got classic editor on) to see some change, but upon trying to reactivate it, I get the following error.

    Error thrown
    Call to undefined function sga_register_gallery_type()

    There I decided trying to delete the plugin itself, but I get the following error:

    Please install and activate Simplest Gallery plugin!Please install and activate Simplest Gallery plugin!{“success”:true,”data”:{“delete”:”plugin”,”slug”:”simplest-gallery”,”plugin”:”simplest-gallery\/simplest-gallery.php”,”pluginName”:”Simplest Gallery”}}

    How do I uninstall the plugin and go back to default gallery?

    My galleries on WP are broken at the moment.

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

Viewing 3 replies - 1 through 3 (of 3 total)
  • Plugin Author cleoni


    Hello, most likely yiu are using an obsolete version, that message has been suppressed in recent versions.

    So just uninstall the plugin, and download new versions of plugin+style addon.

    Please note that the plugin does not midify your posts so all your galleries will remain there, just they will be rendered differently.

    Thread Starter redxfire


    Deleting plugin and downloading/uploading

    Still getting

    Error thrown
    Call to undefined function sga_register_gallery_type()

    If there anyway to uninstall it manually (restore WP default gallery settings?) Doesn’t let me activate nor uninstall.

    Version according to WP of Simplest Gallery is 4.4.

    • This reply was modified 9 months, 3 weeks ago by redxfire.
    Plugin Author cleoni


    Please look at the installed plugins on your website.

    For sure, you had
    1- simplest gallery (main plugin – engine)
    2- a style addon plugin “for Simplest Gallery” (most likely outdated)

    The style addon adds a new type of gallery but it needs the main plugin to work! So, if you uninstall the main plugin (1) the addon might not work or – if it is an old version – it will complain and ask you to install & activate the main plugin.

    So either you uninstall / deactivate both, or you keep at least the main plugin (1) working.

    Hope it helps

Viewing 3 replies - 1 through 3 (of 3 total)
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