Zookeeper-Client login fails

I go to my lab and from webconsole I enter
cxln5 login: zookeeper-client IT does not

I get a request for password.

If I have logged in to the web Console and type zookeeper-client I get the following

cxln5 login: pbcicero762859
Password:
Last login: Sat Mar 27 20:28:34 on pts/9
-bash-4.2$ zookeeper-client
log4j:ERROR setFile(null,true) call failed.
java.io.FileNotFoundException: /var/log/zookeeper/zookeeper.log (Permission denied)

I checked from my end just now and was able to login. Could you please recheck and let me know if you are still facing this issue? Also, to login simply enter ‘zookeeper-client’ without the quotes and press enter.