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 ('5732150a7d3a26a2a5a41f73d85fc8ce', -1, 1713254544, 1713254544, '039137a9', -4, 0, 0)

Line : 187
File : sessions.php