phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('9f1db1dc3cad39cb15fae7e48b0b23ae', -1, 1713950114, 1713950114, '03856dd3', -4, 0)

Line : 158
File : sessions.php