Hi, community!

We faced an issue with Qradar applications. All apps goes to an error state after restarting them. In the web UI we can see the app tabs, but when we try to lounch to the certain app, the empty white window is appearing. We tried to stop and start the application using qappmanager utility. As the result of this action we' ve got an error message as following: "POST https://localhost/api/gui_app_framework/applications/1054?status=RUNNING was unsuccessful",
"An error occurred while checking if image [qapp/1054:2.2.9-20220923132640] exists in the registry. Task state found to be [EXCEPTION]". 
The txt file with error messages are attached to this discussion.

------------------------------
Thomas Jaeger
------------------------------

This should give you the status of isntalled apps in the database
psql -U qradar -c "select id,name,description,status from installed_application;"
(Using the following command you could check if the registry is working
curl https://console.localdeployment:5000/v2/_catalog --key /etc/docker/tls/registry/docker-client-registry.key --cert /etc/docker/tls/registry/docker-client-registry.cert (if the response is similar to this {"repositories":["centos-base","qapp/1012","qapp/1052","qapp/1104","qradar-app-base"]} then the registry key and cert should be OK).
Maybe this will help you move forward.

------------------------------
Dusan VIDOVIC
------------------------------

Thank you a lot! Your reponse was super helpfull. The error was related with certificates. We have typed following commands to recreate all certificates:
1. systemctl stop hostcontext
2. rm -rf /opt/qradar/ca/certs/*
3. /opt/qradar/ca/bin/reset-qradar-ca.sh all --reset
4.systemctl start hostcontext
and then, al applications went to Running state. Now all apps are accessible on UI.

------------------------------
Thomas Jaeger
------------------------------

Original Message:
Sent: Mon December 26, 2022 08:04 AM
From: Dusan VIDOVIC
Subject: An application error. Apps status is error after restarting.

This should give you the status of isntalled apps in the database
psql -U qradar -c "select id,name,description,status from installed_application;"
(Using the following command you could check if the registry is working
curl https://console.localdeployment:5000/v2/_catalog --key /etc/docker/tls/registry/docker-client-registry.key --cert /etc/docker/tls/registry/docker-client-registry.cert (if the response is similar to this {"repositories":["centos-base","qapp/1012","qapp/1052","qapp/1104","qradar-app-base"]} then the registry key and cert should be OK).
Maybe this will help you move forward.

------------------------------
Dusan VIDOVIC
------------------------------