Channel error

[MinLuke]

Goodmorning,

After performing successfully the test, I am trying to run the pipeline using one sample but I get the following message

Channel bt1_chhas been used twice as an output by processBowtieIndexGenome1 and another operator

Not sure if it is a problem of nextflow or of coproid but I wonder if someone can help understanding what to do to resolve it.
Here is the command line I used
nextflow run maxibor/coproid --genome1 'GRCh37' --genome2 'CanFam3.1' --name1 'Homo_sapiens' --name2 'Canis_familiaris' --reads '/mnt/c/Users/Min/Desktop/CoproID/Copro-16_R{1,2}_001.fastq.gz' --krakendb '/mnt/d/IGenomes/minikraken2_v2_8GB.tgz' --igenomes_base '/mnt/d/IGenomes/' -profile docker

Thank you