Hi 

you have to add scf=qc to route section of your input file. this can resolve your problem.

You just restart the Computer, that will fix automatically.

This error related  to convergence and will solve with SCF=QC keyword.

best regards

I think the problem is related to the previous failed job.

you have to disable I502.exe.

so, click right on the taskbar and go to the task manager.

then select Details tab and looking for I502.exe. next select it. then, press end task.

good luck