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 ('a502bdd7a9a6ec6068cd3d3c87c7dee3', -1, 1714800018, 1714800018, '031042ce', 19, 0)

Line : 158
File : sessions.php