Support » Plugin: MC4WP: Mailchimp Activity » Bricked the backend of my site with Server 500 Error

  • My site had automatically updated WordPress to 4.4.1 yesterday evening – I tried installing the MailChimp Activity plugin (from a Zip) this morning. I was dumped out of the page and was locked out of /wp-admin with a Server 500 Error – i.e. this plugin broke the backend of my site. I resolved the issue by reaching the plugins directory via FTP and manually deleting plugin to restore normal service.

    Looks like it will be a useful plugin for me though – and Danny got right back to me to try and diagnose the issue, so once it’s resolved I’ll definitely try again.

Viewing 5 replies - 1 through 5 (of 5 total)
  • Plugin Author Danny van Kooten


    Hi Tom,

    I’m sorry to hear this happened to you.

    Is there any chance you could spare some more details on this issue I’d love to help you resolve this (or prevent it from happening to others). The plugin is fairly new, you know. If you’re familiar with our other plugins you must know we don’t take incidents like this lightly – in fact you are almost the only negative review we’ve ever gotten. I’d love to make up for it.

    Do you happen to know which PHP version you’re running? Also, which version of WordPress are you running? “4.9 1.2” is not a valid version. Did you download the ZIP file from

    Thanks in advance!

    Hi Danny,

    I love your other plugins, so know it’s early-days with this one. My apologies – the site has indeed been updated to WordPress 4.4.1. I copied the wrong version number, refers to Google Analytics Dashboard for WP – which was also updated, so possibly also involved in the error? The server has PHP version 5.5.30.

    – also, yes, I used the link in your email to pull the Zip from

    Plugin Author Danny van Kooten


    Hi Tom,

    Thanks for getting back to me!

    That’s weird – there really shouldn’t be any errors on PHP 5.3 and if there are, at least no fatal ones locking you out of your admin area and giving you the white screen of death.

    I just went through the code again: all code is only loaded on the dashboard page itself and all expensive operations are done over AJAX so it doesn’t slow down the initial pageload.

    Do you happen to have access to your PHP Error Log? That would be of great help in debugging this issue. A plugin like Error Log Monitor may be of help here: .

    Again, I’m sorry that this happened for you Tom. I’m going through all possible scenarios right now to see what caused this.

    Plugin Author Danny van Kooten


    Hey Tom,

    Thank you so much for updating your review – I really appreciate your patience while I work out this nasty kink. Again, sorry you had to go through all this.

    I’ve just updated the plugin again so it fails gracefully, so no more fatal errors.

    To get the plugin to work on your site, you will need to update the main MailChimp for WordPress plugin to version 3.0 or higher first though.

    If you want me to do the update, that’s entirely possible: just send us an email using the address in the plugin footer and I’ll see to it!

    Hope that helps. If not, let me know!

Viewing 5 replies - 1 through 5 (of 5 total)
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