This issue is almost always a permission problem. User defaults are stored in the filesystem and could not be written when this error is shown.

The directory where defaults are stored is configured using the LSAttachmentPath default and is preconfigured to /var/lib/opengroupware.org/documents.

Check the LSAttachmentPath configuration by executing one of the following commands:

`Defaults read NSGlobalDomain LSAttachmentPath`
`Defaults read ogo-webui-1.0a LSAttachmentPath`

If OGo cannot write the path or including files, it either is missing, the disk is full or the permissions are wrong. Starting OGo as with:

strace -e open ogo-webui-1.0a -WOUseWatchDog NO

might help in locating the problem.