phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '674324aca27a3bcaf0b91367dc42a2af' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('674324aca27a3bcaf0b91367dc42a2af', -1, 1776164896, 1776164896, 'd849d8a3', 4, 0, 0)

Line : 187
File : sessions.php