The ( -_- )旦~ emote is commonly referred to as the "disapproval" or "judgmental" face, and can be used to express frustration, annoyance, or disappointment. It does not have any direct association with a serious problem or beer. There is also no specific "Serious problem beer emote," but the beer mug emoji 🍺 may be used in various contexts related to drinking or alcohol consumption. However, it is important to use emojis and other forms of communication responsibly and appropriately.