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 ('0f1252711e2e497c3f0f3cd4ed6fd831', -1, 1568941533, 1568941533, '12ce107b', 8, 0, 0)

Line : 189
File : sessions.php