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 ('a2bb69598b2716743e5e7e8f38e97e82', -1, 1737483925, 1737483925, '03857a40', -9, 0, 0)

Line : 187
File : sessions.php