Mazda 96 626 automatic question? Can shift, but nothin happens

Hello. First post. Anyway my car starts right up, but when I put it in reverse, nothing happens. That goes for any gear. Any input would be greatly appreciated. Thanks.

Whats the fluid level look like?? What color is the fluid?? Does it smell burned?? If the level looks good you’ve probably lost the pump which means the transmission has lost all hydraulic pressure. When this happens, the transmission clutches will fail to engage. End result, no movement.