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 ('8b6201732c03c158cec71f8d8c7e054e', -1, 1714286043, 1714286043, '12de73b3', 7, 0)

Line : 158
File : sessions.php