MySQL Error Occured
1062: Duplicate entry '8d87f511cdf8bb5aa633ec1e3ba7ee66' for key 'PRIMARY'

QUERY = INSERT INTO CityStore_sessions (`location`, `sessId`, `timeStart`, `timeLast`, `customer_id`) VALUES ('/index.php?act=viewCat&catId=7', '8d87f511cdf8bb5aa633ec1e3ba7ee66', '1739340774', '1739340774', 0)