Error ::/opt/ManageEngine/OpManager/jre/lib/amd64/libawt_xawt.so: libXtst.so.6: cannot open shared object file: No such file or di

Error ::/opt/ManageEngine/OpManager/jre/lib/amd64/libawt_xawt.so: libXtst.so.6: cannot open shared object file: No such file or di

Hi Team
Im trying to run Netflow Analyzer after the installation 
I go to the next path: /etc/ManageEngine/Opmanager/bin
And when i run the script ./run.sh show the next problem:
Starting Server from location: /opt/ManageEngine/OpManager
jvm 1    | Error ::/opt/ManageEngine/OpManager/jre/lib/amd64/libawt_xawt.so: libXtst.so.6: cannot open shared object file: No such file or directory

What can i do to solve this problem?

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