Kumar,
if you don't have access to source system, you can reach out basis to help checking the job status.
if source job is failed, then you need to check what was the reason behind.
if source job is successful, then you have to check if there are any trfc's which got stuck (this is also in source system) .
between, is this is only info package which is failing? and since when? was there any recent changes done at data source level?