Hello, when I was assembling, there was such an error, I have not found a solution, I want to know why?

[ouyang-lang]

[Thu Apr 15 16:24:41 2021 corelib/fasta.c:HbnFastaReaderReadOneSeq:483] HbnFastaReader: Expected defline around (1, /data/gs/data/data1/rawdata3/single/2cell/mecat/4-fsa/contigs.fasta)
[Thu Apr 15 16:24:41 2021 corelib/fasta.c:HbnFastaReaderReadOneSeq:486] We skipt this error.
sequences: 0
residues: 0
max: 0
min: 0
avg: 0
median: 0

(N10, L10): 0 0
(N20, L20): 0 0
(N25, L25): 0 0
(N30, L30): 0 0
(N40, L40): 0 0
(N50, L50): 0 0
(N60, L60): 0 0
(N70, L70): 0 0
(N75, L75): 0 0
(N80, L80): 0 0
(N90, L90): 0 0