Communication Channel error (Device busy)

HI all,

i have a problem with sender communication channel (CC) (type file) on PI 7.1

The CC has follow error:

Delivering the message to the application using connection File_http://sap.com/xi/XI/System failed, due to: com.sap.engine.interfaces.messaging.api.exception.MessagingException: java.io.FileNotFoundException: /IFR_PI/prd/out/TYPEB/SEDE_PV/PV_ART/VARGPV_I003 (Device busy).

Anyone can help me to understand this error?

Thanks in advance

PM