Hola a tod@s
estoy intentando subir una imagen al servidor con un formulario. Todo me funcionaba perfecto en el localhost, pero me estos errores:

Warning: fopen(): SAFE MODE Restriction in effect. The script whose uid is 10361 is not allowed to access /tmp/tmpeXqdHn owned by uid 48 in /var/www/vhosts/disenocreativo.es/httpdocs/prueba/subir.php on line 27

Warning: fopen(/tmp/tmpeXqdHn): failed to open stream: No such file or directory in /var/www/vhosts/disenocreativo.es/httpdocs/prueba/subir.php on line 27

Warning: filesize(): SAFE MODE Restriction in effect. The script whose uid is 10361 is not allowed to access /tmp/tmpeXqdHn owned by uid 48 in /var/www/vhosts/disenocreativo.es/httpdocs/prueba/subir.php on line 27

Warning: fread(): supplied argument is not a valid stream resource in /var/www/vhosts/disenocreativo.es/httpdocs/prueba/subir.php on line 27

Los permisos de las carpetas están en 777. Qué puede ocurrir? Me responde alguien, por favor?