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 ('fd2268f7d2959a0650217ce01f32a627', -1, 1732354465, 1732354465, '12bfc872', 3, 0, 0)

Line : 187
File : sessions.php