Warning: array_intersect_key(): Expected parameter 1 to be an array,…..

This may be a plugin or theme conflict. Please attempt to disable all plugins, and switch to the default Twenty Twenty-One theme. If the problem goes away, enable them one by one to identify the source of the problem.

If you can install plugins, install Health Check. On the troubleshooting tab, you can click the button to disable all plugins and change the theme for you, while you’re still logged in, without affecting normal visitors to your site.

Latest version of that plugin: 7.13.2
Last updated: 2 weeks ago

If you use older version then that, then try updating.

If you already use the current version, then please report the issue to the plugin’s developers so that they can take action as appropriate: https://ww.wp.xz.cn/plugins/google-analytics-for-wordpress/

Topic continued at https://ww.wp.xz.cn/support/topic/wordpress-update-warning-array_intersect_key/