What to do if a health check fails to run
The Instance Health feature is available for Jira Server and Data Center, Confluence Server and Data Center, and Bamboo Server.
Sometimes a health check will encounter a problem and fail to run. When this happens, we show a Fail 
status. This page outlines some of the steps you can take to resolve this.
Rerun the health check
Start by running the check again:
Open Troubleshooting and Support Tools in your Atlassian application. Learn how to access Troubleshooting and Support Tools
Open the Instance Health tab. Every time you visit this page, all of the health checks will run again.
If you rerun your health check and it passes, then you can safely ignore the failure. Select Don't remind me again in the warning dialog to prevent the message from reappearing.
See if the check is important to your system
If the check still fails to run, you can also review our documentation to determine whether the check is critical to verify the health of your system. Check the full list of health checks
For example, if you know that your system has more than enough free space, and is very unlikely to run out, you may decide that the Free Space check isn’t relevant for you.
If the check is critical to your instance, you should create a support request and the Atlassian Support team will help you resolve the issue. Learn how to create a support request