phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '99bcdc13a672fad477c2297a21fb01f9' for key 'PRIMARY'

INSERT INTO aristo_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('99bcdc13a672fad477c2297a21fb01f9', -1, 1771805754, 1771805754, 'd849d880', -9, 0, 0)

Line : 187
File : sessions.php