HELP slicer just started doing this

Bambu-studio just started doing this when I try to slice any model. reinstalled BS, have printed most of my models before, use stock settings except 10% infill and gyroid. Never had a problem with over 2000 hrs of printing. Any suggestions? tried arachne, increasing walls and top layers, slicing with smaller and larger nozzles, no it’s not the sliding scale on the right hand side. Any help welcome to get me back printing. Thank you community