At the time of login, it is reflecting forbidden screen In Aria Operations for Logs.

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

• Unable to log in to Aria Operations for Logs.
• Running df -h on all Aria Operations for Logs appliance(s) will show that the root partition is 100%, which can happen on all appliances or any of them. 
• The runtime.log in Aria Operations for logs will show the following exemption: Causes by: java.security.cert.CertificatedExpiredException: NoAfter: .....

Environment

Aria Operations for Logs 8.18.x.

Resolution

• Take snapshots for all the Aria Operations for Logs nodes.
• SSH each Aria operation for the Logs node(s) using root credentials. If you are unable to access the root credentials, use the KB below to reset the root password How to reset the root password in VMware Aria Operations for Logs (formerly VMware vRealize Log Insight)
• On affected Aria Operations for Logs node(s) that show root partition is being full or almost full (typically could be sda4 or sda5 ), use KB Large File Sizes of /var/log/messages and /var/mail/root Causing Root Partition to Fill Up in Aria Operations for Logs
• On all Aria Operations for Logs nodes, use   SSL certificates are expired for Aria Operations for Logs (Formerly Log Insight)