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 ('e4575903fd2afc5a407c78367b3ae538', -1, 1737654847, 1737654847, '0380cebf', 10, 0, 0)

Line : 187
File : sessions.php