phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '15cbf3d9b41c62e64bd0b7925d1440d9' 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) VALUES ('15cbf3d9b41c62e64bd0b7925d1440d9', -1, 1715139151, 1715139151, '03865a2c', -4, 0, 0)

Line : 187
File : sessions.php