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 ('e3971986883cfa24111cb6f03f4ca17b', -1, 1575725344, 1575725344, '03e57adb', -4, 0, 0)

Line : 187
File : sessions.php