I notice that you are using the Nimbix cluster - please open a support ticket with Nimbix and ask them to add me to the ticket. I've worked quite a bit with Nimbix and they know me...and this should be brought to their attention.
And I just saw something after I originally posted this - the Linux that Nimbix uses does not like spaces in the path or file name. So save the WB project to a folder without a space in the name, and use a project name without a space. Then try to solve.