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, session_admin) VALUES ('32cd1f18b152e4e731a1c61b2e361d6d', -1, 1713584889, 1713584889, '03830d25', -1, 0, 0)

Line : 187
File : sessions.php