ControlDict issue Error 4

Hello. I have the issue “ERROR 4: `/home/nick/OpenFOAM/OpenFOAM-v2006/tutorials/incompressible/icoFoam/elbow_tri/system/controlDict’ not recognized as a supported file format.” when I press “Apply” in paraView after choice OpenFoamReader. How can I fix this problem?problem.tar (170 KB)

create an empty file.foam in the main directory and try to open this file instead of openning the control dict file.

I have tried. There is no model. I can’t rotate ortagonal system of vectors in left bottom place. However, the issue has dissapeared from terminal.problem.tar (178 KB)