circuit board on roper gas drop in range/can it be fixed

There may still be hope. Here are some other things you can do:

Contact local parts dealers, one of them might still have it in stock

Enter your part number in a search engine, a smaller company might have it

Try eBay. Search by using the part number

Try a used appliance store, sometimes they have the same model

Contact refurbishing companies, especially for circuit boards:

www.circuitboardmedics.com

www.corecentricsolutions.com/published/allbrandsappliancepartsrepair

www.generaltimerepairs.com

Take the part to a parts retailer, sometimes they can fix the part

Take the part to an appliance technician, they might be able to fix the part

Consider other sources such as www.grainger.com for motors, capacitors, etc.