Problem with DS installation on Redhat8

Hello,

We have some problems during installation of Discovery Studio on Linux(redhat 8).  
And we cannot go to next step on installation, as below message.

Activating Package
scitegic/dataaccess  
++ Package scitegic/dataaccess
Command: /home/SH/PPS/linux_bin/DbUtil -dsn

Could I know the cause of the problem?

Thanks in advance for your help.