FPGA mining setup with Altera DE2-115
Essentially no software supports the getwork call anymore due to the speed of modern miners (they would call it 25,000+ times a second). You’ll need to use a very old version of Bitcoin Core from before this was removed if you’d like your software to work, but the FPGA miner is inefficient enough to never make this worth the time investment. The specific error you’re seeing from the miner is due to endpoint being removed from bitminter, and it not knowing how to handle the non response.