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Home Forums Bug Reports Known Issues Failed to Load Template Data and Error 375

This topic contains 8 replies, has 9 voices, and was last updated by  Zandra Preston 3 months ago.

Viewing 9 posts - 1 through 9 (of 9 total)
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  • #39854

    Johnathan Tan

    Hi there, does anyone know what is causing the above error and how do I fix it?
    As of now, I am unable to load the Oxygen builder to make edits to my template or pages.


    Sue Dunlevie

    I'm having the same problem. No 'edit with Oxygen" button on pages


    Dieter Riedel

    I had the same problem and solved it with deactivating all plugins and then reactivating one by one until I found the one creating the issue and replaced it with a substitute. In my case an out-dated contact form plugin. Alternatively you could try to downgrade that particular plugin if you are sure it worked before.


    Jesus Villalobos

    That worked for me, in this case it was Autoptimize plugin...!



    Jason Louth

    I currently have this same issue. I've downgraded to 4.9.9, disabled every single plug-in, and uninstalled and reinstalled Oxygen. I've tried reverting Oxygen to 2.1, then upgraded back to 2.1.2 - all to no avail! Still unable to edit pages or templates. The editor also will not trigger if I create a new test page - but it doesn't produce an error... just a continual spinning gear.


    I used shortcodes directly as text-boxes within some of my templates. For some shortcodes, this made the templates un-editable with Oxygen - and I got said error. The fix is to disable said plugins so that they don't render (try disabling all plugins except Oxygen, for instance), and then put your shortcodes inside actual shortcode-elements within Oxygen.

    It's a weird error, and I suspect that it collides with other elements within Oxygen. Dunno which exactly.

    Feel free to write me for more info on


    Simon Morris

    i am having the same issue with the spinning cog did you find a fix ?


    Giorgio Riccardi

    NextGen Gallery, in my case.


    Zandra Preston

    For me, it also was the Autoptimze-plugin.

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