ERROR: input not prepared; try: acuRun -do all

How are you attempting to run AcuSolve?

Are you running from HyperWorks CFD?  If so - can you add a screenshot of the job launch panel - wide enough to show all input fields - directories, path to the solver, etc?

Are you launching from the Command Prompt?  If so - what is the exact command you typed?

I'm running it from HW CFD, here is the screenshot:

I'm running it from HW CFD, here is the screenshot:

It's very likely related to the spaces and/or the + in the directory (in any of the directories - complete path) and problem name. As a general rule I always recommend not using spaces - use underscore instead - and not to use characters like + in directories or problem names.

Yes, thank you it seems to be working now!