# Cronjob mautic:campaign:trigger throws an error **URL:** \ **Category:** Product Support\ **Created:** [November 27, 2020, 9:47pm UTC](https://forum.mautic.org/t/cronjob-mautictrigger-throws-an-error/17189 "2020-11-27T21:47:33Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![alexhammer](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/alexhammer/32/14525_2.png) [@alexhammer](https://forum.mautic.org/u/alexhammer)\ **Post date:** [November 27, 2020, 9:47pm UTC](https://forum.mautic.org/t/cronjob-mautictrigger-throws-an-error/17189/1 "2020-11-27T21:47:33Z")
**Your software** My Mautic version is: 3.1.2 My PHP version is: 7.3 My Database type and version is: MariaDb 10.4 **Your problem** My problem is: Mautic started to throw an error on one of my machines after I installed a plugin i built. Even when going back, the same thing happens. When I try to trigger the cronjob manually it says: > Attempted to load class “DOMDocument” from the global namespace. Did you forget a “use” statement? These errors are showing in the log: > [2020-11-27 21:34:59] mautic.NOTICE: Symfony\Component\Debug\Exception\FatalThrowableError: Class ‘DOMDocument’ not found (uncaught exception) at /var/…/mautic/app/bundles/PageBundle/Model/TrackableModel.php line 364 while running console command `mautic:campaigns:trigger` > [2020-11-27 21:34:59] mautic.WARNING: Command `mautic:campaigns:trigger` exited with status code 1 Steps I have tried to fix the problem: Updating the database schema, Reinstalling Mautic and inserting the database, clearing cache and read/write permissions, … I think it is very strange. Especially because I have the 100% same setup on more then 20 different machines running perfectly. It would be great if someone could give me a hint where to look at. TrackableModel.php line 364 I couldn’t find something suspicious… that’s only about finding links in html documents and parse trackables. Anyway I guess somewhere there is the actual problem.