Regardless of what you do to fix the drawer, consider that its the weight of what you’ve got in the drawer that caused the failure. Consider either reinforcing the underside, and or waxing or lubing whatever the roller or mounting hardware is. The heavy weight causing drag is ultimately why this failed (along with it just being cheap as shit particle board).
When I’ve had this issue in the past, I’ve gone ahead and replaced and reinforced the whole thing with 1/4th inch plywood. You can run two dados up the face board and then run the plywood into those, then pin nail and glue.