Automic Web Interface (AWI) becomes inaccessible

Products

• CA Automic One Automation

Issue/Introduction

The UI becomes inaccessible, noticed following message on UI while connected to client 0: 
U00015006 System forced memory trace dump.
U00015006 System forced memory trace dump.
U00003422 WARNING: Cannot load conversation memory '1b165d00' for server routine 'UCDS_R'.
U00011801 Error in Server routine 'UCDS_R ', Server: 'AUTPRD#WP001' AE system: 'AUTPRD'.

When trying to list agents, seen error:
No JWP active. com.uc4.ecc.backends.exceptions.AutomationEngineAPIException

Environment

Release: Automic 12.3

Component: Automic Web Interface

Resolution

Perform the COLD start of Automic Engine as mentioned in below KB Article:
https://knowledge.broadcom.com/external/article/89891/how-to-perform-a-cold-start-of-automatio.html