Support » Plugin: Simple Calendar - Google Calendar Plugin » Once updated, receiving a cURL error 60

  • To the developers of Simple Calendar,

    We had your Simple Calendar on on website for over a year now. Everything was working great until your last update about 2 hours ago. We have updated the plugin, and not non of calendar events are showing up in our calendar. We received an error message of:
    “While trying to retrieve events, Google returned an error:
    cURL error 60: SSL certificate problem: unable to get local issuer certificate (see
    Please ensure that both your Google Calendar ID and API Key are valid and that the Google Calendar you want to display is public.”

    We have checked our Google Calendar ID… It is correct. We even made sure the API Key are valid and it was. Just to make sure, we created a new API Key and plugged it in. It is still giving us that error. Thinking of it have something of your update. Please fix any bugs your Calendar may have or please help… Need this fixed as soon as possible.



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

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  • Plugin Author Zach Wills


    Hey @camanicnack,

    For now, you can try downloading the previous release (3.1.10) on at the direct zip link here:

    Thank you for helping to make Simple Calendar better by reporting bugs or issues you find. I’m sorry the update caused some trouble with your installation- we’re looking into this to see what the cause might be and what the best fix is.



    Plugin Author Zach Wills


    Hey @camanicnack

    To help us get to the bottom of your issue, can you provide some of the following (all if possible!):

    * Link to screenshots of your calendar settings using a screen sharing service like Dropbox, Cloudup, or Jing/Screencast.
    * Link to or paste in your system report text file from Calendars > Tools from your site’s dashboard.
    * Paste in the shortcode and event builder codes you’re using.
    * Create and link a test page with the issue so we can take a look.

    I’m sorry that you’re having an issue with the latest update- I’ll try to get this resolved for you as quickly as possible.



    • This reply was modified 8 months, 3 weeks ago by  Zach Wills. Reason: Tagging correct username
Viewing 2 replies - 1 through 2 (of 2 total)
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