# After update to 7.0.0 can't access my e-mails - error 500 comes!

**URL:** <https://forum.mautic.org/t/after-update-to-7-0-0-cant-access-my-e-mails-error-500-comes/37228>\
**Category:** Mautic 7 Install / Upgrade Support\
**Created:** [January 28, 2026, 7:29am UTC](https://forum.mautic.org/t/after-update-to-7-0-0-cant-access-my-e-mails-error-500-comes/37228 "2026-01-28T07:29:38Z")\
**Posts on this page:** 1\
**Showing post:** 23

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**Author:** ![marcus42](https://avatars.discourse-cdn.com/v4/letter/m/ac91a4/32.png) [@marcus42](https://forum.mautic.org/u/marcus42)\
**Post date:** [February 4, 2026, 4:33pm UTC](https://forum.mautic.org/t/after-update-to-7-0-0-cant-access-my-e-mails-error-500-comes/37228/23 "2026-02-04T16:33:00Z")

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I’m not as eloquent as your preferred chatbot is. Please bear with me.

The error that you’ve reported earlier was crystal clear. Zero hesitation on the problem.

It’s a user permission problem. And not a “mautic” one.

How to interpret the error:  
You have some user that is equal or stronger than your www-data user.  
That user is modifying the files in the cache.  
Then, the user “www-data” now tries to rename some file/directory.  
But the user “www-data” isn’t privileged enough to perform that task, and crash out.

”Mautic” isn’t involved in that crash. It’s happens because of a misconfiguration (or use)

The long story short: How to resolve

1. As user01, create a permission-less user (let’s say “webmaster”)  
`sudo adduser webmaster`

2. add that user to the www-data group  
`sudo usermod -aG www-data webmaster`

3. move your mautic out of the /var/ directory and move it to the /home/webmaster/public\_html (where mautic will be living)  
`sudo mv /var/www/mautic /home/webmaster/public_html`

4. change ownership of the files:  
`sudo chown webmaster: /home/webmaster/public_html -R`

5. create/update your vhost to point to the /home/webmaster/public\_html directory

6. remove any old cronjobs. Those will now be executed by the web user (webmaster)

7. switch to the web user  
`sudo su webmaster`

8. Start installing/managing your web app (add the cronjobs, tweak your environment vars, make yourself confortable with a $HOME/bin/…)

A free server management panel is webmin. Very easy to install on Ubuntu (a must have imo). You’ll be able to easily do all the above from a GUI.

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