Help!rapidleech error send data

Hi,im using quickbox for seedbox and rapidleech during a year and work like a charm,but a few days a go,on rapidleech upload big files to have a message error “error send data”,this error occurs when upload big files(like 4GB to 70GB),i try to reinstal OS and clean quickbox,but dont work same error,try to install only rapidleech and same error,how to solve this error?need some help is very appreciate