502 error after activating plugin

@sccr410 can you enable debug logging by adding:

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);

to your wp-config.php, then check the /path/to/wordpress/wp-content/debug.log file?

As mentioned, I already added logging and nothing appeared there.

@sccr410 Apologies, I thought you meant webserver logs, not the debug.log file. Without an error message there’s not much I can do to help. You could add define('MATOMO_SAFE_MODE', true); to your wp-config.php to try and get access to wp-admin again. Though if this bypasses the error, it won’t reveal the source of the original error. If it does bypass the error, you may be able to find more detail via the system report page (at Matomo Analytics > Diagnostics).

If you’re unable to see an error in any error log, the only other option to finding the cause would be to use a debugger or insert echo statements in the plugin to see where the error is (starting from the contents in /path/to/wordpress/wp-content/plugins/matomo/matomo.php).

@sccr410 is this still something you are experiencing/looking into?

I have not yet been able to try safe mode yet, will after the new year – thanks for checking

I’m marking this as resolved due to a lack of response, however if you need more help or have an update, feel free to reply or create another issue.