Problem with upload nf-core output on minio server

Hello,
I am trying to run nf-core scrnaseq pipeline and store the results on minio server using the command :

os.system('nextflow run nf-core/scrnaseq -profile docker --input s3://alignment/samplesheet.csv \
          --fasta s3:/'+ path_gen+' \--gtf s3:/'+path_ant+ ' --protocol \
            '+dict_args["selectedProtocol"]+' --aligner alevin --outdir '+outdir+' \
                -config nextflow_scrnaseq.config -bg --skip_emptydrops --save_align_intermeds false ')

I am using the using the config file :

aws {
    accessKey ='***'
    secretKey = '***'
    region = 'us-east-1'
    client {
        endpoint = "*"
        s3PathStyleAccess = true
    }
}
workDir = 's3://intermediates/work'

At the end I get the following error :

[ef/2b9315] NFCORE_SCRNASEQ:SCRNASEQ:FASTQC_CHECK:FASTQC (SRR6496011) [ 50%] 1 of 2, failed: 1
[-        ] NFCORE_SCRNASEQ:SCRNASEQ:GUNZIP_FASTA                     [  0%] 0 of 1
[-        ] NFCORE_SCRNASEQ:SCRNASEQ:GUNZIP_GTF                       [  0%] 0 of 1
[-        ] NFCORE_SCRNASEQ:SCRNASEQ:GTF_GENE_FILTER                  -
[-        ] NFCORE_SCRNASEQ:SCRNASEQ:SCRNASEQ_ALEVIN:SIMPLEAF_INDEX   -
[-        ] NFCORE_SCRNASEQ:SCRNASEQ:SCRNASEQ_ALEVIN:SIMPLEAF_QUANT   -
[-        ] NFCORE_SCRNASEQ:SCRNASEQ:SCRNASEQ_ALEVIN:ALEVINQC         -
[-        ] NFCORE_SCRNASEQ:SCRNASEQ:MTX_TO_H5AD                      -
[-        ] NFCORE_SCRNASEQ:SCRNASEQ:H5AD_CONVERSION:CONCAT_H5AD      -
[-        ] NFCORE_SCRNASEQ:SCRNASEQ:H5AD_CONVERSION:ANNDATAR_CONVERT -
[-        ] NFCORE_SCRNASEQ:SCRNASEQ:MULTIQC                          -
Execution cancelled -- Finishing pending tasks before exit
WARN: Got an interrupted exception while taking agent result | java.lang.InterruptedException
ERROR ~ Error executing process > 'NFCORE_SCRNASEQ:SCRNASEQ:FASTQC_CHECK:FASTQC (SRR6496011)'

Caused by:
  Local executor requires the use of POSIX compatible file system — offending path: s3://intermediates/work/ef/2b93156a305d7d89a579b715dbafc7

Do you know why I get this error and what I am doing wrong ?

Thank in advance.

Loïc