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 ('24afac688dab84ff3e0663091c3ec042', -1, 1540330764, 1540330764, '36e0387e', 1, 0, 0)

Line : 187
File : sessions.php