phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e8747a802756278aa67d5342f55cc46b' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('e8747a802756278aa67d5342f55cc46b', -1, 1768736770, 1768736770, '00000000', -9, 0, 0)

Line : 187
File : sessions.php