phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('5c624860a247ecd4445a1640c8f572e0', -1, 1714629712, 1714629712, '031677fb', 2, 0)

Line : 158
File : sessions.php