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 ('d37844d41a00c6c931ce9c9d00b992fc', -1, 1713482559, 1713482559, '039071c5', -4, 0, 0)

Line : 187
File : sessions.php