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 ('25e303ed591011ba738e9f9bbdb93d74', -1, 1762122846, 1762122846, 'd849d837', 0, 0, 0)

Line : 193
File : sessions.php