Miya Ponsetto's lawyer Sharen H. Ghatan says incident was not race-related
Ponsetto, 22, was dubbed 'SoHo Karen' after she wrongly accused a black teenager of stealing her phone in at the Arlo Hotel in New York City last week
Video footage showed Ponsetto tackling Keyon Harrold Jr, 14, in the hotel lobby after she incorrectly assumed he took her phone
Ghatan claimed Ponsetto has a history of anxiety attacks and panicked after she realized her phone was missing
Ponsetto, who is from California, was traveling alone while visiting her father in New York City for Christmas and was relying on her phone for navigation