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 ('b55afa0ea934ae7ed7fdeff8ea4f41fc', -1, 1713508354, 1713508354, '038a655f', -10, 0, 0)

Line : 187
File : sessions.php