Hi @starmomou and welcome to the community 
seems like there is eigher another instance of sonarqube already running that is locking this data directory or the path specified is not writable by sonarqube.
can you check if there are other java processes running on your system and ensure that only one instance of sonarqube is running at a time?
if this is the case and you are still facing this issue, please delete the es7 directory and try again. there might be a lock from a previously crashed es instance that did not get removed there.
hope that helps 