Brouter-web had recently the same issue with the OCM.
When Norbert ( the Brouter-web developer ) managed the API key,
it started to work again.
the same, when I managed my own key
for my local instance of the Brouter-web server.
Make sure you managed the proper key aware URLs.
I cannot check now, as it is on my home computer.
--
Poutnik ( The Pilgrim, Der Wanderer )
https://github.com/poutnikl/Brouter-profiles/wiki