This is called an open circuit. A number of possibilities come to mind:
1) Bad cord (cheap fix)
2) Bad wall outlet (easy check - plug working lamp in and also try plugging coffeemaker into another outlet)
3) Circuit breaker has tripped (could be one-timer or an indicator of a more serious wiring or breaker problem). Circuit breaker normally controls multiple outlets, so check other outlets.
4) Next checking options involve disassembling coffeemaker bottom, looking for “open circuit” inside: loose connections, broken wiring, defective thermostat, defective heating element (not common), broken plug pins etc. Will need Multimeter and some expertise to do this checking (or someone who has this expertise).