Support » Plugin: Campaign Monitor for WordPress » Fatal Error

  • Resolved herofarm


    Every time I update the plugin it then says there is a massive update when I click on Subscriber Messages and it begins doing so. However, a few seconds later it has a fatal error and breaks the site. Everything else is updated and good to go but this plugin seems not to want to play nice at all. I have to revert back to version 1 to get it working again. What is the deal and is this fixable?

    Fatal error: Uncaught Error: Class ‘CampaignMonitorWpTableForms’ not found in

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

Viewing 4 replies - 1 through 4 (of 4 total)
  • Plugin Author Campaign Monitor


    Hi herofarm,

    Very sorry for the trouble here! Because of the significant differences between the earlier versions of our plugin, there is a special procedure for upgrading. We have details on this in this guide: under the heading UPDATING FROM 1.X TO 2.7+ .

    If you have already attempted this process and run into problems, the best option now would be to delete the plugin altogether and reinstall. This will mean that any custom forms you have created will be lost unfortunately.

    The latest version of our plugin is 2.8.6 and can be downloaded here: .

    Thank you for your patience, please let me know if you see any further issues.

    Thread Starter herofarm


    Thanks for following up. When I click on the sidebar this comes up, which it did the other times too. It is the only thing it tells me to do. When I click update it shows what is below followed by the error. I have also deleted the plugin and tried installing the latest fom scratch but it seems to continue to have issues. I’m stumped.

    Forms for Campaign Monitor Update
    This is a major update. Please check and customize the appearance of your forms after you upgrade the plugin.

    We have significantly updated the plugin.

    • Completely customize each form’s colors and styling.
    • Add captcha to your forms to prevent spam.
    • Connect Campaign Monitor and WordPress using OAuth for better security.
    • Performance improvements.
    • Tons of bug fixes.

    <<Update Now>>


    `Warning: count(): Parameter must be an array or an object that implements Countable in /nfs/c05/h04/mnt/71390/domains/ on line 645

    Fatal error: Uncaught Error: Cannot use object of type stdClass as array in /nfs/c05/h04/mnt/71390/domains/ Stack trace: #0 /nfs/c05/h04/mnt/71390/domains/ forms\core\Application::generateConnectPage(”) #1 /nfs/c05/h04/mnt/71390/domains/ WP_Hook->apply_filters(”, Array) #2 /nfs/c05/h04/mnt/71390/domains/ WP_Hook->do_action(Array) #3 /nfs/c05/h04/mnt/71390/domains/ do_action(‘toplevel_page_c…’) #4 {main} thrown in /nfs/c05/h04/mnt/71390/domains/ on line 646

    There has been a critical error on this website. Please check your site admin email inbox for instructions.

    Learn more about debugging in WordPress.

    Thread Starter herofarm


    I pushed through despite those errors and it seems to have worked. Thank you so much for your help!

    Plugin Author Campaign Monitor


    Hi again @herofarm ,

    Thanks so much for trying that out and the updates along the way.

    We’re glad to hear is working for you now.

    If you do run into any other troubles, don’t hesitate to reach out!

Viewing 4 replies - 1 through 4 (of 4 total)
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