Instead of creating a new document instance for a doctype, the template button macro only logs an error to the browser's console.
Solution
The doctype cache seems to be in an invalid state.
The projectdoc Doctype Cache can be found in the Confluence Administration on the Cache Statistics page. This page is only accessible with admin privileges.
To resolve this issue you would either need to
- refresh the doctype cache or
- simply clear the cache.
