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 ('fe71b788efa7a2e14178c44384fd2a03', -1, 1714626436, 1714626436, '12778560', 20, 0)

Line : 158
File : sessions.php