Starbucks is making some massive changes to its rewards program, Starbucks Rewards, sending coffee lovers into a frenzy. On Tuesday, the coffee giant is rolling out its new rewards program, changing how many stars customers have to earn to get free food and beverages. Read more: Starbucks is revamping its rewards program so that customers can get free treats faster. Starbucks’ rewards program is seen as one of the best in the restaurant business. In January, the company reported that it had With such a massive customer base, tweaking Starbucks Rewards can be a risky game. And customers are already worried that they could be ripped off under the new system as Starbucks works to win over more casual coffee drinkers. Many people are freaking out about the disappearance of their stars, which Starbucks Rewards members can cash in for food, drinks, and other items. Previously, customers became green members when they first signed up for the loyalty program and gold members when they ear...