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 ('4029247e0608f07faaf3dcb59d5957a7', -1, 1714383634, 1714383634, '340e554c', -4, 0)

Line : 158
File : sessions.php