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 ('4b06a4d9d8bc0dc3898cc076b2ca74d7', -1, 1752878958, 1752878958, '54ccfc03', -1, 0, 0)

Line : 187
File : sessions.php