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 ('2cca9b1020702db0f11b923b5be62ab8', -1, 1766293284, 1766293284, '54ccfc03', 2, 0, 0)

Line : 187
File : sessions.php