# CronJob Error campaigns and segments
**URL:** https://forum.mautic.org/t/cronjob-error-campaigns-and-segments/32234
**Category:** Product Support
**Created:** [May 31, 2024, 4:17pm UTC](https://forum.mautic.org/t/cronjob-error-campaigns-and-segments/32234 "2024-05-31T16:17:10Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@domjag](https://forum.mautic.org/u/domjag)
#### Post date: [May 31, 2024, 4:17pm UTC](https://forum.mautic.org/t/cronjob-error-campaigns-and-segments/32234/1 "2024-05-31T16:17:11Z")
**Your software**
My Mautic version is: 5
My PHP version is: 8.1
My Database type and version is: Mariadb 10x
**Your problem**
My problem is:
I can run Cronjobs manually however when they run in the scheduler I get the following error in my logs.
These errors are showing in the log:
console.CRITICAL: Error thrown while running command “mautic:segments:update”. Message: “flock(): Argument #1 ($stream) must be of type resource, bool given” {“exception”:“[object] (TypeError(code: 0): flock(): Argument #1 ($stream) must be of type resource, bool given at /home/campaign.imatr.net/public\_html/app/bundles/CoreBundle/Command/ModeratedCommand.php:161)”,“command”:“mautic:segments:update”,“message”:“flock(): Argument #1 ($stream) must be of type resource, bool given”}
Steps I have tried to fix the problem: restarting the cron
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### Author:  [@peter\_k](https://forum.mautic.org/u/peter_k)
#### Post date: [June 1, 2024, 2:44pm UTC](https://forum.mautic.org/t/cronjob-error-campaigns-and-segments/32234/2 "2024-06-01T14:44:56Z")
I’m pretty sure you’re having a file access permission problem.
cron probably uses another user. Because of that it can’t open something called a lock file.
If it could open it, it would get a PHP resource object. If there is a problem the bool type `false` is returned. This is what the error message tells you.
Check your file permissions and what users are used for cron, your PHP CLI, and webserver.
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### Author:  [@domjag](https://forum.mautic.org/u/domjag)
#### Post date: [June 1, 2024, 4:18pm UTC](https://forum.mautic.org/t/cronjob-error-campaigns-and-segments/32234/3 "2024-06-01T16:18:30Z")
It doesnt show up anymore in the logs - seems to be fixed, I changed the cron job back to root user and it seems to have fixed the issue. Im going to play around with it a little more. Not crazy about using root in this case. Thanks for the suggestion!
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### Author:  [@peter\_k](https://forum.mautic.org/u/peter_k)
#### Post date: [June 2, 2024, 2:27pm UTC](https://forum.mautic.org/t/cronjob-error-campaigns-and-segments/32234/4 "2024-06-02T14:27:01Z")
> [@domjag](#):
>
> I changed the cron job back to root user and it seems to have fixed the issue.
Which confirms that this was a permission issue.
> [@domjag](#):
>
> Not crazy about using root in this case.
I’d urge you to reconsider, as you’re opening up your system to a variety of indirect attack vectors. But of course it’s your decision 😉
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### Author:  [@domjag](https://forum.mautic.org/u/domjag)
#### Post date: [June 2, 2024, 2:41pm UTC](https://forum.mautic.org/t/cronjob-error-campaigns-and-segments/32234/5 "2024-06-02T14:41:02Z")
Thanks Peter, yes I am going to figure out why my permissions only work for root