Open Motif version 2.2 or higher is required to run LispWorks with the Motif GUI.
Install Open Motif 2.2.x from the FreeBSD distribution or ports tree. Your systems administrator may be able to help if you do not know how to do this.
You will also need Imlib (not Imlib2). Install this from the FreeBSD distribution or ports tree. Imlib version 1.9.13 or later is recommended.