Error in bsmap

[jamo]

Hi
I have to say "thanks" to you first.
I'm trying to analyze my data using BSMAP.
I wrote this command:

bsmap -a /mgs/data/../s_96nt_sequence_sanger/
s_6_1_s_96nt_reads_sanger.txt -d /mgs/resources/downloads/.../
Allchr.fa -o BSMAP_s_6_1.bsp -p 2 -r 0 -w 100 -s 10 -n 0 -v 2 -i 2

but I got this message several times:

Load in 18072 db seqs, total size 231032659 bp. 4 secs passed
total_kmers: 59049
Segmentation fault

my reads have sanger-fq format.
I try with default command also.please guide me what is wrong in my
command.
Thank you for your helps.