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 ('bc766201d668fea65f0895c162d94854', -1, 1561001669, 1561001669, '36a11ff7', 34, 0, 0)

Line : 189
File : sessions.php