phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c571896ab734be7df2bb93113bc84493' 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 ('c571896ab734be7df2bb93113bc84493', -1, 1772005362, 1772005362, 'd849d879', 1, 0, 0)

Line : 187
File : sessions.php