Agent not starting after updating

[nexo1960]

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Agents crashed after update clients to version r2.13.0-1 with server in r2.12.3-1

Hi, Thanks to everybody for reading. We have a recent issue after upgrading some ubuntu clients to latest version available in the repository. The agents that has been updated to r2.13.0-1, has crashed and in the status has a failed. They have stoped working. The server is in an Ubuntu Server 16.04 LTS with ESM enabled. The latest version available in the repository of the server is r2.12.3-1. Is a compatibility issue? In the clients log, we can see that: root@unifi:/etc/icinga2# service ic…