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 ('80c34d0e5101a281c0110564d9db33e1', -1, 1713501415, 1713501415, '030f039a', -2, 0, 0)

Line : 187
File : sessions.php