phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '15d656a715d68b1cbc2653bdf2c11f7f' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('15d656a715d68b1cbc2653bdf2c11f7f', -1, 1764455156, 1764455156, 'd849d857', -9, 0)

Line : 180
File : /www/includes/sessions.php