For the error, you would need to provide more details such as what the error says and if there is anything in the error log around the time you do the rip (help/ support/ view error log).
If the disc really is a HDCD disc, it should not matter whether you tick the HDCD option or not - it should still be ripped without error, but if the option is ticked then it will be decoded to 24 bits with the HDCD sound enhancements already applied. If you have acccurate rip checking enabled i expect it would fail to make an accurate rip match.