Users Receiving multiple Brava Communication errors on multiple documents as depicted on below screen:
Need to check the Brava server connection or Temp file folder for the space.
Clear the Brava server cache and Temp folder and restart the services.it will re-establish the connection and open file in Brava without any error message.
https://communities.bentley.com/products/assetwise/assetwise_platform/w/wiki/35018/communication-failed-with-brava