phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('3d1b19cae0c59f4c6c953e0d881a0f2b', -1, 1737485384, 1737485384, '12e32e57', -9, 0, 0)

Line : 187
File : sessions.php