DOE EVALUATE ERROR FILE NOT FOUND

Hi guys,

i encountered some problems with my optimization in evaluate step in DOE 1. I run it for two models, one for compliance optimization and one for mass optimization. There are two separate folders and files do exist in folder. I don't understand what is the problem because the files are present. Hwsolver says that there is no problem and design is feasible. Any ideas?

1035 Message: Started run ( 1 ), model ( m_1 ), Execute ( pid = 14320 ).

 1036 Message: Started  run ( 2 ), model ( m_1 ), Execute ( pid = 15272 ).

 1037 Message: Started  run ( 3 ), model ( m_1 ), Execute ( pid = 15028 ). 

 1038 Message: Started  run ( 4 ), model ( m_1 ), Execute ( pid = 13628 ).

 1039 Message: Finished run ( 1 ), model ( m_1 ), Execute ( pid = 14320 ).

 1040 Message: Execute output (stdout) logged to file ( C:\Users\Ghost\Desktop\praca magisterska\CAD\obliczenia\rama3\s1\approaches\doe_1\run__00001\m_1\task__exe_stdout.txt ).

 1041 Error  : Encountered    1 error using solver ( OptiStruct ( os ) )

               For more information see ( C:\Users\Ghost\Desktop\praca magisterska\CAD\obliczenia\rama3\s1\approaches\doe_1\run__00001\m_1\hwsolver.mesg ).

 1042 Error  : The execute task is failed for model ( Model 1 ( m_1 ) ).

 1043 Error  : Data source ( Element Stresses (2D & 3D) (2D) vonMises (Z1) ( ds_1 ) ) file not found ( C:\Users\Ghost\Desktop\praca magisterska\CAD\obliczenia\rama3\s1\approaches\doe_1\run__00001\m_1\rama3v5_s1.h3d ).

 1044 Error  : Data source ( Objective - Value ( m_1_ds_1 ) ) file not found ( C:\Users\Ghost\Desktop\praca magisterska\CAD\obliczenia\rama3\s1\approaches\doe_1\run__00001\m_1\rama3v5.hgdata ).

 1045 Error  : Data source ( Element Stresses (2D & 3D) (2D) vonMises (Z1) ( ds_1 ) ) file not found ( C:\Users\Ghost\Desktop\praca magisterska\CAD\obliczenia\rama3\s1\approaches\doe_1\run__00001\m_1\rama3v5_s1.h3d ).

 1046 Warning: Cannot evaluate expression ( max(ds_1) ), Failed to extract ( Element Stresses (2D & 3D) (2D) vonMises (Z1) ( ds_1 ) )

               Check if all expressions, preference files, sources and other components are valid.

 1047 Error  : Data source ( Objective - Value ( m_1_ds_1 ) ) file not found ( C:\Users\Ghost\Desktop\praca magisterska\CAD\obliczenia\rama3\s1\approaches\doe_1\run__00001\m_1\rama3v5.hgdata ).

 1048 Warning: Cannot evaluate expression ( m_1_ds_1[0] ), Failed to extract ( Objective - Value ( m_1_ds_1 ) )

               Check if all expressions, preference files, sources and other components are valid.

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