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 ('bb29f8d18264d4f5090ff9459b4db602', -1, 1715943534, 1715943534, '12e03d0c', 15, 0)

Line : 158
File : sessions.php