not found mpich2mpi.dll

Hello everyone,

When I use AcuSolve Job Launcher 2020, my job can run normally,

but now I have two jobs to run continuous, I use a batch file to execute,

here is my batch file content: 

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CD D:\Analysis\run_xxx1
call "C:\Program Files\Altair\2020\hwcfdsolvers\acusolve\win64\bin\acuRun.bat" -pb xxx1 -inp xxx1.inp -np 4
CD D:\Analysis\run_xxx2
call "C:\Program Files\Altair\2020\hwcfdsolvers\acusolve\win64\bin\acuRun.bat" -pb xxx2 -inp xxx2.inp -np 4

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when I execute this batch, the system will comes out a warning message "not found mpich2mpi.dll"

Dose anyone know how to fix it? please.

Thank you