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 ('a7142e098256d2f96388ed9f8d1c03cb', -1, 1714677434, 1714677434, '038dca36', 18, 0)

Line : 158
File : sessions.php