ERROR: "could not load libfvOptionsCFDEM.so" while running "periodicChannel" tutorial

Hi everyone,
While running the Periodic Channel tutorial I encountered the following error message:
----------------------------------------------------------------------------------------------------------------------------------------------------
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

--> FOAM Warning :
From function void* Foam::dlOpen(const Foam::fileName&, bool)
in file POSIX.C at line 1236
dlopen error : libfvOptionsCFDEM.so: cannot open shared object file: No such file or directory
--> FOAM Warning :
From function bool Foam::dlLibraryTable::open(const Foam::fileName&, bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 105
could not load "libfvOptionsCFDEM.so"

Decomposing mesh region0

Removing 4 existing processor directories
Create mesh

Calculating distribution of cells
Selecting decompositionMethod simple

Finished decomposition in 0 s

Calculating original mesh data

Distributing cells to processors

Distributing faces to processors

Distributing points to processors

Constructing processor meshes
--> FOAM Warning :
From function void* Foam::dlOpen(const Foam::fileName&, bool)
in file POSIX.C at line 1236
dlopen error : libfvOptionsCFDEM.so: cannot open shared object file: No such file or directory
--> FOAM Warning :
From function bool Foam::dlLibraryTable::open(const Foam::fileName&, bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 105
could not load "libfvOptionsCFDEM.so"

Processor 0
Number of cells = 512
Number of faces shared with processor 1 = 32
Number of faces shared with processor 1 = 32
Number of faces shared with processor 2 = 128
Number of processor patches = 3
Number of processor faces = 192
Number of boundary faces = 256
--> FOAM Warning :
From function void* Foam::dlOpen(const Foam::fileName&, bool)
in file POSIX.C at line 1236
dlopen error : libfvOptionsCFDEM.so: cannot open shared object file: No such file or directory
--> FOAM Warning :
From function bool Foam::dlLibraryTable::open(const Foam::fileName&, bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 105
could not load "libfvOptionsCFDEM.so"

Processor 1
Number of cells = 512
Number of faces shared with processor 0 = 32
Number of faces shared with processor 0 = 32
Number of faces shared with processor 3 = 128
Number of processor patches = 3
Number of processor faces = 192
Number of boundary faces = 256
--> FOAM Warning :
From function void* Foam::dlOpen(const Foam::fileName&, bool)
in file POSIX.C at line 1236
dlopen error : libfvOptionsCFDEM.so: cannot open shared object file: No such file or directory
--> FOAM Warning :
From function bool Foam::dlLibraryTable::open(const Foam::fileName&, bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 105
could not load "libfvOptionsCFDEM.so"

Processor 2
Number of cells = 512
Number of faces shared with processor 0 = 128
Number of faces shared with processor 3 = 32
Number of faces shared with processor 3 = 32
Number of processor patches = 3
Number of processor faces = 192
Number of boundary faces = 256
--> FOAM Warning :
From function void* Foam::dlOpen(const Foam::fileName&, bool)
in file POSIX.C at line 1236
dlopen error : libfvOptionsCFDEM.so: cannot open shared object file: No such file or directory
--> FOAM Warning :
From function bool Foam::dlLibraryTable::open(const Foam::fileName&, bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 105
could not load "libfvOptionsCFDEM.so"

Processor 3
Number of cells = 512
Number of faces shared with processor 1 = 128
Number of faces shared with processor 2 = 32
Number of faces shared with processor 2 = 32
Number of processor patches = 3
Number of processor faces = 192
Number of boundary faces = 256

Number of processor faces = 384
Max number of cells = 512 (0% above average 512)
Max number of processor patches = 3 (0% above average 3)
Max number of faces between processors = 192 (0% above average 192)

Time = 0

Processor 0: field transfer
--> FOAM Warning :
From function void* Foam::dlOpen(const Foam::fileName&, bool)
in file POSIX.C at line 1236
dlopen error : libfvOptionsCFDEM.so: cannot open shared object file: No such file or directory
--> FOAM Warning :
From function bool Foam::dlLibraryTable::open(const Foam::fileName&, bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 105
could not load "libfvOptionsCFDEM.so"
Processor 1: field transfer
--> FOAM Warning :
From function void* Foam::dlOpen(const Foam::fileName&, bool)
in file POSIX.C at line 1236
dlopen error : libfvOptionsCFDEM.so: cannot open shared object file: No such file or directory
--> FOAM Warning :
From function bool Foam::dlLibraryTable::open(const Foam::fileName&, bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 105
could not load "libfvOptionsCFDEM.so"
Processor 2: field transfer
--> FOAM Warning :
From function void* Foam::dlOpen(const Foam::fileName&, bool)
in file POSIX.C at line 1236
dlopen error : libfvOptionsCFDEM.so: cannot open shared object file: No such file or directory
--> FOAM Warning :
From function bool Foam::dlLibraryTable::open(const Foam::fileName&, bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 105
could not load "libfvOptionsCFDEM.so"
Processor 3: field transfer
--> FOAM Warning :
From function void* Foam::dlOpen(const Foam::fileName&, bool)
in file POSIX.C at line 1236
dlopen error : libfvOptionsCFDEM.so: cannot open shared object file: No such file or directory
--> FOAM Warning :
From function bool Foam::dlLibraryTable::open(const Foam::fileName&, bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 105
could not load "libfvOptionsCFDEM.so"

End

do nothing.

// run_parallel_cfdemSolverPiso_periodicChannel_CFDDEM //

/home/sultan/CFDEM/CFDEMcoupling-PUBLIC-5.x/run/periodicChannel/CFD

rm: cannot remove 'couplingFiles/*': No such file or directory
--------------------------------------------------------------------------
mpirun was unable to find the specified executable file, and therefore
did not launch the job. This error was first reported for process
rank 0; it may have occurred for other processes as well.

NOTE: A common cause for this error is misspelling a mpirun command
line parameter option (remember that mpirun interprets the first
unrecognized command line token as the executable).

Node: sultan-HP-Pavilion-Notebook
Executable: cfdemSolverPiso
--------------------------------------------------------------------------
4 total processes failed to start
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Upon running the "cfdemSysTest" I noticed that my $WM_LABEL_SIZE = 64 rather than 32 and this gives a warning too. Is the said problem caused by this $WM_LABEL_SIZE ?

best regards,
Saad
P.S. I have also attached the log files generated during execution.