Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: @GoPro your UX online is appalling! No clear save button, not being able to use any generic TLD's #unhappy
This tweet contains emotions: 
anger, disgust, sadness