An error occured during publishing of an organisation

I use Bonita BPM 6.5.1. Community Version. java version "1.8.0_45" Java(TM) SE Runtime Environment (build 1.8.0_45-b14) Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

When I try to publish an organisation in Bonita Studio an error occured with the following details:

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What could be the reason?