Try shorter time ranges… 5 years of daily MODIS data is 1.500 requests… it takes a while to process all of this. I tried with one year and it worked without a problem.
This is not very practical for us but we will have to update our platform to accommodate this
Having that said, having 13 years more of historical data is really cool !! 
We now have data since 1 January 2000 ?
I believe it is from December 2000.