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, session_admin) VALUES ('3824ce27a7a1b0be8a657d4c6412e0f5', -1, 1713480654, 1713480654, '340fbd30', -11, 0, 0)

Line : 187
File : sessions.php