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 ('5e1c7dfd560a6f7bb07730f335b25802', -1, 1713927332, 1713927332, '12bc3ddf', 3, 0, 0)

Line : 187
File : sessions.php