ParFlow CLM Fortran run time error

[Çağrı Alperen İnan]

Ciao Parflow family, 

Hope all is well for you

I am having the following error while running Parflow CLM on my desktop WSLUbuntu with a python script: 

At line 182 of file drv_readclmin.F90 (unit = 20)

Fortran runtime error: File already opened in another unit

--------------------------------------------------------------------------

Primary job  terminated normally, but 1 process returned

a non-zero exit code. Per user-direction, the job has been aborted.

--------------------------------------------------------------------------

mpiexec detected that one or more processes exited with non-zero status, thus causing

the job to be terminated. The first process to do so was:

  Process name: [[19023,1],0]

  Exit code:    2

================================================================

# ParFlow run failed. Contents of error output file:

--------------------------------------------------------------------------------

Node 0: Using process grid (1,1,1)

Node 0: Well Information

Node 0: No Wells.

What would be the reason for that: a mistake in the mentioned fortran script or problems about my data files or my computational limitations?

Thanks for your time in advance