Elasticsearch is not running after update to 2.3.3

I have ubuntu server in Oracle Virtualbox.
this morning I upgraded the elastic from version 2.2.1 to 2.3.3 and I can not turn on the service of elasticsearch.

after i make 'sudo service elasticsearch restart' the status is 'elasticsearch is not running
do you have any idea?

Check elastic log at /var/log/elasticsearch/.log - see if it throws any errors

I checked and no new log file today.