Hello , i hope you're doing fine please i'm using SSPACE for scaffolding but i got this error msg

Thread 30 terminated abnormally: Can't open bwa output -- fatal
Thread 31 terminated abnormally: Can't open bwa output -- fatal
Thread 32 terminated abnormally: Can't open bwa output -- fatal
Thread 33 terminated abnormally: Can't open bwa output -- fatal
Thread 34 terminated abnormally: Can't open bwa output -- fatal
Thread 35 terminated abnormally: Can't open bwa output -- fatal


Process 'extend/format contigs' failed on Thu Apr 16 21:16:10 2020

here s command i used

-s contigs.fa -l sspace_Library -x 1 -k 10 -n 30 -z 50 -T 8  -b SSPACE_Results

And here's the library file

Lib1 bowtie R_1.fastq R_2.fastq 226 0.5 FR

Please how can i avoid this error , Thank you very much