CAT is known to be a private company without public support. I have tried finding documents or troubleshooting guides for this purpose, but there isn't anything available. First thing to do is to check the built-in documentation or HELP. Go to the installation directory and check for manuals or user guides (typically in PDF format). Secondly, if you don't find anything then I recommend getting in touch with the developers. They should provide additional help to overcome this issue. You can find contacts information using Help > About or use the following website: http://www.cat.com/en_US/support/maintenance.html
These companies will offer support if you are an active customer.