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php fatal error message

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Viewing 12 posts - 1 through 12 (of 12 total)
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  • May 14, 2020 at 11:00 pm #3928
    Alan CogginsAlan Coggins
    Participant

    My client occasionally gets a php error message on his site that says:

    [12-May-2020 01:45:04 UTC] PHP Fatal error: Uncaught Error: Call to undefined function is_plugin_active() in /home/xxxxxxxx/public_html/wp-content/plugins/quiz-master-next/php/classes/class-qmn-quiz-manager.php:1067

    Do you know why it is giving this error?
    Thanks.

    May 16, 2020 at 5:10 am #3946
    Kriti SharmaKriti Sharma
    Keymaster

    Hi,

    Welcome to Qsm Pro Support Forum. Hope you are having a great day. Please expect a little delay in response as it is weekend. I will get back to you soon.

    Regards,
    Kriti

    May 17, 2020 at 7:49 pm #3974
    Kriti SharmaKriti Sharma
    Keymaster

    Hi Alan,

    Please share the website’s admin credentials with me so that I can look into the issue. Make sure to set the message as private before sharing the credentials.

    Regards,
    Kriti

    May 17, 2020 at 9:41 pm #3982
    Alan CogginsAlan Coggins
    Participant
    This reply has been marked as private.
    May 18, 2020 at 8:14 am #3991
    Kriti SharmaKriti Sharma
    Keymaster

    Hi Alan,

    I have forwarded your issue to the development team. I will keep you posted as soon as I hear back from them.

    Regards,
    Kriti

    May 19, 2020 at 6:18 am #4020
    Kriti SharmaKriti Sharma
    Keymaster

    Hi Alan,

    Our development team has recorded this as a bug and they will provide you a fix soon.

    Regards,
    Kriti

    May 21, 2020 at 2:09 am #4072
    Alan CogginsAlan Coggins
    Participant

    Thanks Kriti,
    That’s great news. My client is very happy with the plugin and doesn’t want to change.
    Cheers,
    Alan

    May 21, 2020 at 10:03 am #4086
    Kriti SharmaKriti Sharma
    Keymaster

    All the best, Alan.

    Kriti

    July 21, 2025 at 5:52 pm #14312
    alex arafatalex arafat
    Participant

    That PHP error usually happens because the function is_plugin_active() isn’t loaded when that code runs—often it means the necessary WordPress file isn’t included before calling it. It’s similar to how in hay day unblocked apk, progress feels stuck until you remove limits; here, your code can’t proceed without the right function loaded first. Including the correct WordPress plugin functions file before calling is_plugin_active() should fix the error and get things running smoothly.

    July 22, 2025 at 10:07 am #14325
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    Participant

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    November 25, 2025 at 2:51 pm #16431
    Alex BlastAlex Blast
    Participant

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    January 29, 2026 at 4:12 pm #18181
    Alex SeenAlex Seen
    Participant

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