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 ('9e5e5a1771150738da5e3152fa9af5c1', -1, 1737440544, 1737440544, '0390285a', 8, 0, 0)

Line : 187
File : sessions.php