We had a brief outage earlier today that our engineers have since resolved, however, there are still some lingering issues with the Template service.
Currently the templates are not available for selection and listings that use templates will not be able to post until this issue has been resolved. Our engineers are aware of this difficulty and working on its resolution. I will update this post as soon as we have more information available regarding this situation.
Apologies for any inconvenience this may cause.