Web Portal error: HTTP Error 503. The Service is unavailable.

Hello,

v9.2.1

We have done a fresh installation and are encountering a 'Service Unavailable' error when trying to access the web portal. We checked the below KB article, but the issue persists. Any assistance would be helpful.

https://support.oneidentity.com/identity-manager/kb/4349509/web-portal-error-http-error-503-the-service-is-unavailable

Error: 

Service Unavailable

HTTP Error 503. The Service is unavailable.

Thanks,

Pavithra