The message
failed to obtain node locks, tried [[/usr/share/elasticsearch/data]] with lock id [0]; maybe these locations are not writable or multiple nodes were started
It means that you have a node already running or that there have been a weird crash that did not remove the lock in the data dir. Or that you are not starting the node with the proper way.
BTW you should upgrade to the latest version to make sure you have all the recent fixes.