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 ('00f26403b16e441c86a0761cba1417b9', -1, 1713306974, 1713306974, '038a8dca', 4, 0, 0)

Line : 187
File : sessions.php