In regards to the COVID-19 situation

Your support team is currently doing their best to offer the best support possible despite the current COVID-19 situation. However during these exceptional circumstances, please note that you should expect a response time of 2-3 business days, until further notice.Rest assured that we will still do our best to handle your requests as soon as possible! Everyone stay safe and healthy! 😷

Error – Warning: Cannot modify header information

This topic is resolved
Viewing 5 posts - 1 through 5 (of 5 total)
  • Author
  • Otoo
    • 1 Topics
    • 1 Posts

    i just pruchased the theme and after installing theme im e getting an error when loading Warning: Constants may only evaluate to scalar values in /hermes/bosnacweb02/bosnacweb02cj/b1788/ipg/wp-content/themes/cera/functions.php on line 585 Warning: session_start(): Cannot send session cache limiter – headers already sent (output started at/hermes/bosnacweb02/bosnacweb02cj/b1788/ipg/wp-content/themes/cera/functions.php:585) in /hermes/bosnacweb02/bosnacweb02cj/b1788/ipg/wp-content/plugins/paid-memberships-pro/includes/sessions.php on line 21 Warning: Cannot modify header information – headers already sent by (output started at /hermes/bosnacweb02/bosnacweb02cj/b1788/ipg/wp-content/themes/cera/functions.php:585) in /hermes/bosnacweb02/bosnacweb02cj/b1788/ipg/wp-content/plugins/paid-memberships-pro/adminpages/reports/login.php on line 418

    Themosaurus Support
    • 0 Topics
    • 1843 Posts

    Hi @intranet,

    We’re very sorry for the inconvenience. 🙁

    We’re not sure to know what is causing this issue as we’re not facing it with our demo or any other website. If something went wrong during the import, it’s recommended to address the issue right now as it might lead to other problems in the future.

    If you’re not too far ahead with building your website, we really suggest to use the setup wizard to reinstall the theme. This tool will programmatically redo the setup and do some extra steps for you.

    You can easily reset your WordPress database using WP Reset ( and start fresh with our setup wizard.

    Then, if this issue persists, our best guess is that it is caused by some conflicting third party plugin or some extra code snippet as we don’t encounter this issue with our demos.

    In this case, could you deactivate all plugins that have not been installed with your theme during its setup and all existing custom PHP code snippets please? And then, could you confirm me that the issue is still persisting please?

    Please also make sure that you have the latest theme version and that all recommended plugins are up-to-date. You could also consider clearing all activated caching system as well as your browser cache before investigating any further.

    Thank you.

    • 0 Topics
    • 2 Posts
    This reply has been marked as private.
    • 0 Topics
    • 2 Posts

    Hi olivier,

    I just fixed the problem! It seems that all I needed was to upgrade my PHP to the latest version.


    Themosaurus Support
    • 0 Topics
    • 1701 Posts

    Hi @tthato,

    I’m glad to read that you’ve been able to solve this!


Viewing 5 posts - 1 through 5 (of 5 total)

The topic ‘Error – Warning: Cannot modify header information’ is closed to new replies.

Troubleshooting Demo Imports

You're trying to setup your theme but you're experiencing errors when importing the demo content? Or you've just followed the setup guide but your website doesn't look exactly like our demo? These are common issues for which you can find easy and quick fixes.

Happy With our Support So Far?

Feel free to review our theme on Themeforest! It helps us making our products more known to new potential customers, which allow us more time to improve the quality and develop new features. #SharingIsCaring ❤️