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 ('3934d922cc2d97aec3700563ce02fdcd', -1, 1581898011, 1581898011, '035ecaac', -4, 0, 0)

Line : 187
File : sessions.php