Help for cross_match

[magel]

i'd nerver used cross_match,so i tried a small data set that was only50000 reads to test it and the command i set was cross_match -gap_ext -1 -bandwidth 10 -minmatch 20 -maxmatch 24 -tags -alignments -discrep_tables
-screen
when i run the software, it always appears:
FATAL ERROR: MAX_NUM_BLOCKS exceeded
why it is always to be an error~

[magel]

and then i also try cross_match.manyreads,the situtaion was the same,it was still an error.