There are three options:
. Find and mount the file system to the "/usr/cai/view/webviewer/" mount point.
. Do not APPLY any PTFs that update the WebViewer or DRAS FMID.
. Uninstall WebViewer and/or DRAS
In the first case of this kind, the client performed the first option of creating the missing USS folder "/usr/cai/view/webviewer/CA".