phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4823a13c243bfa655224a4d930dc9004' 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 ('4823a13c243bfa655224a4d930dc9004', -1, 1768787621, 1768787621, 'd849d8ad', 6, 0, 0)

Line : 187
File : sessions.php