I started getting this error today and have no reason why, and I do not know what it means or where to find out:
Error: COMP96_0233: Fatal error : INTERNAL COMPILER ERROR
It may be a library issue. Please do the following:
In Design Browser right-click on the library and select "Delete simulation data" from the drop-down menu.
Re-compile the file.
If this does not help please open a support ticket at www.aldec.com/support and attach your file at fault.