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 ('08a3424f1a3d0ef9d7f3270b662f8a10', -1, 1713958273, 1713958273, '03ef5b05', -7, 0, 0)

Line : 187
File : sessions.php