Can't save changes to WF options

Hi,

I can’t save any changes I make to the WF options area. The timer just keeps spinning and if I reload the page the changes haven’t happened.

I’m not sure if I’m doing this right but I used the developer tool to look at the timer icon next to the ‘save changes’ button when you click to save changes to the options area.

I got the following errors in the console section:

http://www.ailsworthparishcouncil.org.uk/wp-content/plugins/ag-custom-admin/require/dynamic.php?type=css&context=admin&ver=changed_theme Failed to load resource: the server responded with a status of 403 (Forbidden)
http://www.ailsworthparishcouncil.org.uk/wp-content/plugins/ag-custom-admin/require/dynamic.php?type=js&context=admin&ver=changed_theme Failed to load resource: the server responded with a status of 403 (Forbidden)
http://www.ailsworthparishcouncil.org.uk/wp-content/plugins/ag-custom-admin/require/dynamic.php?type=css&context=admin&ver=changed_theme Failed to load resource: the server responded with a status of 403 (Forbidden)
http://www.ailsworthparishcouncil.org.uk/wp-content/pgins/ag-custom-admin/require/dynamic.php?type=js&context=admin&ver=changed_theme Failed to load resource: the server responded with a status of 403 (Forbidden)
http://www.ailsworthparishcouncil.org.uk/wp-admin/admin-ajax.php Failed to load resource: the server responded with a status of 403 (Forbidden)
http://www.ailsworthparishcouncil.org.uk/wp-content/plugins/ag-custom-admin/require/dynamic.php?type=css&context=admin&ver=changed_theme Failed to load resource: the server responded with a status of 403 (Forbidden)

They are all related to the AG Custom Admin plugin. Do you think this is the reason why I can’t save any changes in Wordfence at the moment?

Thanks

https://wordpress.org/plugins/wordfence/