SLA Cofiguration is not displaying the existing SLA created in Project

[Shejal Payer]

Hi All,

Suddenly in Jira Service Desk 3.16 , SLA configuration page existing Response and Resolution SLA are missing in Project Settings. In logs giving below error

2020-09-03 17:59:52,905 http-nio-8889-exec-25 url:/rest/servicede...a-admin-sla-subnav username:admin ERROR admin 1079x342125x2 1fh81uo 10.150.250.97 /rest/servicedesk/1/CR/webfragments/sections/sd-jira-admin-sla-subnav [c.a.plugin.web.DefaultWebInterfaceManager] WebItemProvider from module 'com.atlassian.servicedesk.project-ui:sd-jira-project-slas-provider' threw an error 'java.lang.NullPointerException'. Web-items provided by this provider will be ignored.
2020-09-03 18:00:44,682 http-nio-8889-exec-1 url:/rest/servicede...a-admin-sla-subnav username:admin ERROR admin 1080x342222x2 1aepf91 10.150.250.97 /rest/servicedesk/1/CR/webfragments/sections/sd-jira-admin-sla-subnav [c.a.plugin.web.DefaultWebInterfaceManager] WebItemProvider from module 'com.atlassian.servicedesk.project-ui:sd-jira-project-slas-provider' threw an error 'java.lang.NullPointerException'. Web-items provided by this provider will be ignored.
2020-09-03 18:03:06,501 http-nio-8889-exec-18 url:/rest/servicede...a-admin-sla-subnav username:admin ERROR admin 1083x342455x2 1aepf91 10.150.250.97 /rest/servicedesk/1/CR/webfragments/sections/sd-jira-admin-sla-subnav [c.a.plugin.web.DefaultWebInterfaceManager] WebItemProvider from module 'com.atlassian.servicedesk.project-ui:sd-jira-project-slas-provider' threw an error 'java.lang.NullPointerException'. Web-items provided by this provider will be ignored.

It is showing to create a SLA again, existing SLA are missing.