files not found!

[farz1995]

I have problem while I want to run for examples: this is my error, despite I am sure that I have datasets, but I have directory error.

cp: cannot stat 'example/msa/example_B.a3m': No such file or directory
python /home/fe5vb/project/PIQUE/PIQLE//example/msa/msa_concat.py --tar example --rec example/msa/example_A.a3m --lig example/msa/example_B.a3m --ch1 A --ch2 B --out ./
/home/fe5vb/project/PIQUE/PIQLE//apps/glinter/external/A3M_NoGap example/msa/example_A.a3m .//example/msa/example_A.a3m.nogap
file example/msa/example_A.a3m not found!
file example/msa/example_B.a3m not found!