how can i fix this?

hello dear friends, my question is about the office plugin, first, i installed my server ocs inventory in SO Ubuntu 18.04 and is working,  and the install the aforementioned plugin is ok, but when the agent send the info to my server and check the key in page of my server ocs, only show me the last 5 characters of the licence key, the version of my server is 2.5 and my agent 2.1.1.1