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[justjane]

I am getting this error message when I try to update WordPress > Settings > Media. I am using the child theme for X.

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[prakash_s]

Hello @janequade

I checked your website and I found that Your website is running on WordPress 5.5 version.
WordPress upgrade can be the reason for this issue, we are currently testing our themes and plugins with the updated version of WordPress, theme and bundled plugins will be released after it has passed our test.
Please check the version compatibility page if the latest versions of plugins are already available.

I would suggest you downgrade the WordPress version of your website, till the updated version of the theme & plugin is released.
To downgrade the WordPress version you can get help from here: https://soliloquywp.com/how-to-downgrade-wordpress-to-an-older-version/

I would suggest you downgrading WordPress to version 5.3. 5.3 is the supported version and the one we currently support.

I would also suggest you troubleshoot a few common issues too:

1. Theme Related Issue
2. Testing for Plugin Conflict
3. Child Theme Issue
4. Increase PHP Memory Limit
5. Increase PHP Execution Time Limit

I recommend increasing the following server settings to the specified value or larger. Please consult to your web host for all these server settings

PHP configuration recommended

memory_limit = 512M
upload_max_filesize = 512M
post_max_size = 512M
max_execution_time = 300
max_input_time = 300

After all, the server settings configured properly then purge all the cache and check it again

Thanks