Tom,
Just resolved an issue that was blamed on my attempts to save %current_year% in GP’s Copyright add-on. This apparently triggered a ModSecurity rule that blocked my IP for 24 hours on more than one occasion, making it impossible to access my sites/dashboards from any device on my home wifi.
It was eventually solved by a .htaccess file edit (SecRuleRemoveByID something-or-other), but I’m sharing here in case an update to your Copyright add-on could also solve/prevent this in future.
Hope this helps.