BioTradis empty counts output

I have a sequenced Transposon-insertion mutant library and I wish to find the number of unique mutants/ insertions in the library. I used Bio-Tradis reads to counts to map the reads to the reference genome and calculate the counts. The output must be 3 files: 1. A mapping statistics, 2. Plot files: a tabular.gz file containing insertion site information , 3. BAM file. The tool runs to end without any error and I get the mapping stats and BAM file, but the output that should contain the plot files is empty. Can’t figure out why…please help!