Hi,
Please provide more details. Do you have WP_DEBUG enabled? What version of PHP do you have? Also, please disable third-party plugins and customizations (if there are any) and check if this issue persists. If you use a caching plugin, ensure that caching is disabled for logged-in users. As an alternative, I recommend checking the PHP logs and sending them to us, as they will provide more details: How to configure WordPress error logs to identify and resolve problems - HivePress Help Center