You cannot create a file or sub-subsite whose name collides with one of the various files and folders that CommonSpot creates on the server "behind the scenes," on your behalf.
The list of files and folders that CommonSpot will create as part of its infrastructure includes:
template-*.cfm for your local templates (the * will be replaced by the name you specify for the template)
the following folders will be created in each subsite and sub-subsite:
cachecustomcf (not in V8, but may be left over from pre-V6)
customcf (new in V6)
pageindex (not in V8, but may be left over from pre-V6)
files with the following names, with one ending or another, will be created in each subsite and sub-subsite:
force-login (not in V8, but may be left over from pre-V6)
restricted (not in V8, but may be left over from pre-V6)
Do not attempt to create pages using any of the above listed file names, except index, nor to create sub-subsites using any of the above listed folder names!
If you are migrating an existing site, subsite, or sub-subsite into CommonSpot from another server, and the existing site uses any of the folder names or file names that are listed above (including any files of the same name with any ending), please contact the Web Team (by E-mail to firstname.lastname@example.org or by phone to 593-1222) early in the planning process, before you start creating any pages or sub-subsites in CommonSpot.