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 ('ace96236f87f521adcf395f00fc24a30', -1, 1544485334, 1544485334, '345b5a7a', -11, 0, 0)

Line : 193
File : sessions.php