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 ('209f1be1e728282164df2fe18927db4f', -1, 1713586183, 1713586183, '030e8de4', -2, 0, 0)

Line : 187
File : sessions.php