# Invalid PEM encoded certificate

**URL:** <https://forum.mautic.org/t/invalid-pem-encoded-certificate/31509>\
**Category:** Product Support\
**Created:** [April 1, 2024, 6:30pm UTC](https://forum.mautic.org/t/invalid-pem-encoded-certificate/31509 "2024-04-01T18:30:34Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![sgtbhaji](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/sgtbhaji/32/637_2.png) [@sgtbhaji](https://forum.mautic.org/u/sgtbhaji)\
**Post date:** [April 1, 2024, 6:30pm UTC](https://forum.mautic.org/t/invalid-pem-encoded-certificate/31509/1 "2024-04-01T18:30:34Z")

</div>

**Your software**  
My Mautic version is: 5.0.3  
My PHP version is: 8.0.26  
My Database type and version is: MySQL 8.0.36

**Your problem**  
I am trying to test Mautic 5.0.3 on my local WAMP environment. I am getting a 500 server error trying to access the dashboard.

In the logs I’m getting the following error:  
[2024-04-01T18:28:38.383641+00:00] mautic.CRITICAL: Uncaught PHP Exception InvalidArgumentException: “Invalid PEM encoded certificate” at C:\sites\mautic\vendor\litesaml\lightsaml\src\Credential\X509Certificate.php line 73 {“exception”:“[object] (InvalidArgumentException(code: 0): Invalid PEM encoded certificate at C:\sites\mautic\vendor\litesaml\lightsaml\src\Credential\X509Certificate.php:73)”}

Any suggestion on how to remedy this? Thanks!