[horde] My own modules block activesync

[Soporte SCHOLEM]

Hello, Team.
We would want to integrate Horde with other app, so we developed our  
first module following the howto  
https://wiki.horde.org/CreatingYourFirstModule.
It is easy for now: it just jumps to an app in a popup.
When we copy the generated files into /config/registry.d, the new  
option on menu appears and the link works fine, but activesync stops  
to sync all the devices with this error in debug log:


ERR: [1063] Attempting to add a collection
                      to the sync cache while requiring a synckey, but no
                      synckey could be found. Most likely a client error in
                      requesting a collection during PING before it  
has issued a
                      SYNC.
   

If we delete the files in registry.d, activesync works again.
Has anybody the same problem? May we make something wrong?
Thank you in advance
Carlos
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