Matlab licensing problem in linux

Hi, I have a problem about licensing in Linux. I'm currently using Xubuntu 16.04 LTS. Here it is the error log after trying to activate the matlab trial.

License checkout failed.
License Manager Error -8
Make sure the HostID of the license file matches this machine, and that the HostID on the SERVER
line matches the HostID of the license file.
Troubleshoot this issue by visiting: 
http://www.mathworks.com/support/lme/R2017a/8
Diagnostic Information:
Feature: MATLAB 
License path: /home/psefit/.matlab/R2017a_licenses:/usr/local/MATLAB/R2017a/licenses/license.dat:/usr/local/MATLAB
/R2017a/licenses/trial_3956774_R2017a.lic 
Licensing error: -8,523.