# Unable to verify the first certificate

**URL:** <https://forum.mautic.org/t/unable-to-verify-the-first-certificate/13942>\
**Category:** Product Support\
**Created:** [April 17, 2020, 10:02am UTC](https://forum.mautic.org/t/unable-to-verify-the-first-certificate/13942 "2020-04-17T10:02:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![tonershop](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/tonershop/32/1530_2.png) [@tonershop](https://forum.mautic.org/u/tonershop)\
**Post date:** [April 17, 2020, 10:02am UTC](https://forum.mautic.org/t/unable-to-verify-the-first-certificate/13942/1 "2020-04-17T10:02:49Z")

</div>

**Your software**  
My Mautic version is: 2.15.1  
My PHP version is: 7.2.29

**Your problem**  
My problem is:  
I try to link Integromat with Zapier and followed the instructions on [https://support.integromat.com/hc/en-us/articles/360012769419-Mautic](https://support.integromat.com/hc/en-us/articles/360012769419-Mautic) to create a set of API keys and enter them in the Integromat software. In Integromat I then setup the connection as described in the instructions and it will ask permission to access my Mautic installation but then a few seconds later this message appears: unable to verify the first certificate.

 ![Knipsel](https://us1.discourse-cdn.com/flex020/uploads/mautic/original/2X/f/f9fa238ae9d437d0119567a02297701cb3166a6c.jpeg)

These errors are showing in the log:  
There are no errors showing in the log files (both server and in mautic)

Steps I have tried to fix the problem:  
Nothing so far, the website does have a valid ssl certificate installed so that could not be the problem.