About the Commands in mothur category

Use this forum to address questions about the use of various commands available in mothur

i’m new at mothur , and i have a error when i run vsearch.command
mothur > chimera.vsearch(fasta=stability.trim.contigs.good.unique.filter.unique.precluster.fasta, count=stability.trim.contigs.good.unique.filter.unique.precluster.count_table, dereplicate=t)

Using 8 processors.
Checking sequences from stability.trim.contigs.good.unique.filter.unique.precluster.fasta …
[ERROR]: M00967_43_000000000-A3JHG_1_2114_6251_5508 is not in your count table. Please correct.
Segmentation fault
can you help me to resolve this problem??