bgpreader not working with routeviews

BGPreader is not able to download the RIB from Routeviews. I have been seeing this problem for almost two months. Before that month, it was perfect.  Here is a sample code that I used:
`bgpreader -t ribs -p routeviews -w 1609459200,1609459200 -A _13335_`
The same command works for ris with:
`bgpreader -t ribs -p ris -w 1609459200,1609459200 -A _13335_`