Error while installing RSA Identity Management and Lifecycle

While trying to install IMG on remote DB I am gettting the below error:

Mon Aug 6 08:09:53 BST 2018] Checking database connections...
Checking database...
Failed to connect to the database

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[Mon Aug 6 08:09:53 BST 2018] Checking for required packages...
[Mon Aug 6 08:09:53 BST 2018] Checking for required packages completed

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[Mon Aug 6 08:09:53 BST 2018] Checking for packages directory...
[Mon Aug 6 08:09:53 BST 2018] Checking for packages directory completed

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[Mon Aug 6 08:09:53 BST 2018] Shutting down RSA Identity Governance and Lifecycle...
[Mon Aug 6 08:09:53 BST 2018] Shutting down RSA Identity Governance and Lifecycle completed

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[Mon Aug 6 08:09:53 BST 2018] Configuring users...
[Mon Aug 6 08:09:53 BST 2018] Configuring users completed

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[Mon Aug 6 08:09:53 BST 2018] Installing Oracle Client...
[Mon Aug 6 08:09:56 BST 2018] Installing Oracle Client completed

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[Mon Aug 6 08:09:56 BST 2018] Checking database connections...
Checking database...
Failed to connect to the database

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[Mon Aug 6 08:09:56 BST 2018] Checking database connections...
Checking database...
Failed to connect to the database
ERROR: Unable to connect to the database; aborting installation
Use "sudo /tmp/aveksa/staging/deploy/configure.sh" to repeat the configuration questions.
Use "sudo /tmp/aveksa/staging/deploy/install.sh" to retry the installation.

Did anyone faced this issue before ?