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 ('aba2d7fa4e1cc30a9b8a0a53dc8069ae', -1, 1715397250, 1715397250, '12bf93be', 4, 0, 0)

Line : 187
File : sessions.php