Improper Column Headers in Attachment List
This problem is related to a third party plugin, and therefore not supported by Atlassian. See Atlassian Supported Plugins for more information.
Symptoms
The column headers for attachment list are rendered as incomplete URLs instead of proper titles.
Each of the column headers link to a broken URL, for instance:
https://confluence/pages/$workflowReport.getUrl(%22sort%22,$columName,%22order%22,$workflowReport.sortOrder($columName))
Cause
The Ad hoc Workflows
plugin is installed in Confluence. Due to an internal problem with the plugin, it fails to overwrite the properties of the column headers.
Resolution
This issue has been addressed and the plugin is now offered as Comala Workflows. A restart is required after plugin upgrade.
See the plugin's bug report.
Should you choose to uninstall the plugin, a restart is required.