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 ('1be51dd9fb560c94e2a2372ed157c759', -1, 1737623888, 1737623888, '12e369a4', -9, 0, 0)

Line : 187
File : sessions.php