And on Thursday night the 28-year-old allegedly was seen feuding with Paris Hilton, which reportedly resulted in her getting ousted from the DJ's VIP area.
The former Nickelodeon star was escorted from the area and then proceeded to behave strangely for the rest of the night, according to the New York Post.
According to the publication, Amanda showed up at 10ak in Los Angeles with a male friend and tried to sit at Paris's table.
The 33-year-old heiress, who was sitting with pal Brandon Davis, was reportedly not happy about the intrusion.
'There was a scene, and words exchanged, before they kicked her out of their area,' a source told the Post.
Following their blowout, the Easy A actress was seen acting strangely for the rest of the night.
'Amanda wasn't drinking, but she was acting really weird,' a source said. 'She stood in the middle of the club with her friend, looking really awkward, and just seemed totally out of it.'
The troubled star was released from a psychiatric facility on October 30 and has reportedly been diagnosed with bipolar disorder.
Amanda was recently recorded on tape threatening to kill her own parents, Rick and Lynn Bynes.
'I want to literally like lead him into a ditch and ... I haven't decided how I'd want to murder him, because now I have like this war wound on my face, and I don't believe in murder. Nothing would give me greater pleasure than like, slitting his throat.'
TMZ said Amanda's family members wanted the tapes released because they might act as 'wake-up call for medical professionals to intervene and get her help.'
The actress then tried to clarify the recording, saying: 'I don't want to shoot my father in the face, and that's why I said I want to like strip for him as a joke.'
