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404 Error when I try to Edit Page/Post OR click 'Preview Changes' (3 posts)

  1. yetispeaks
    Member
    Posted 1 year ago #

    Hello

    I get the 404 Page Not Found error whenever i try to Edit a post (ie. press the 'Update' button). It also happens when we click the 'Preview changes' button.

    Previously we were using WordPress 3.2.x when it happened. So I upgraded to 3.5.1 along with all the plugins. Still same issue (except now the theme is f*cked lol :-( ).

    Also it seems WordPress automatically converts Safe code to Vulnerable code.

    *Example*

    ---- Wrong Vulnerable Code: ----
    Click here for the full list of modules

    ---- Correct Safe Code: ----
    Click here for the full list of modules

    I can't figure it out and have hired a programmer to look at it but he can't troubleshoot it either.

    Any help would be greatly appreciated and if you could help resolve it I will be over the moon. This is for an independent design school run by my friends - we are at wit's end.

    Thank you WordPress community!

    http://www.orita-sinclair.edu.sg

  2. yetispeaks
    Member
    Posted 1 year ago #

    I searched the forum for existing solutions but they were a year ago and unresolved. Hopefully this time around someone knows something!

  3. WPyogi
    Volunteer Moderator
    Posted 1 year ago #

    Try deactivating all plugin and switching to the default WP theme -- see if the issue persists then.

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