phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'adfc6f353e3c1093135af0d046ff1b51' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('adfc6f353e3c1093135af0d046ff1b51', -1, 1755108286, 1755108286, 'd849d87e', 0, 0, 0, '0')

Line : 187
File : sessions.php