No reblocks/page:init-page method defined.

My page stop working after (ql:update-all-dists)
I also get the same problem after following the tutorial at https://40ants.com/reblocks/quickstart/#x-28REBLOCKS-2FDOC-2FQUICKSTART-3A-40QUICKSTART-2040ANTS-DOC-2FLOCATIVES-3ASECTION-29

I get the following problem:

No reblocks/page:init-page method defined.
Please define a method reblocks/page:init-page to initialize a new page.
It could be something simple, like this one:
CL-USER> (defmethod reblocks/page:init-page ((app tasks) (url-path string) (expire-at local-time:timestamp))
"Hello world!")
And reset current session:
CL-USER> (reblocks/debug:reset-latest-session)
Then reload the page.
Read more in [documentaion](http://40ants.com/reblocks/quickstart/).