Hi,
First of all, be very careful. There are several dubious "support" sites on the Internet, often with misleading names. Only download drivers from a trustworthy source, such as the printer manufacturer (Samsung printers are now part of HP) or Apple.
If you cannot find a driver for exactly this printer, the ML-3051ND seems to support postscript and PCL emulation, so you could perhaps carry out an experiment with generic postscript printer software (or possibly a generic PCL driver) available for macOS. See also the Use option under the Add a network printer by specifying its IP address section in Add a printer to your printer list so you can use it on Mac – Apple Support (UK).
As always, make sure that you have backup copies of all important files before testing anything.