I am also getting errors from http://linux-packages.resilio.com lately. I followed the instructions on https://www.resilio.com/blog/official-linux-packages-for-sync-now-available and it did work until recently, Ubuntu managed to update Resilio to version 2.4.4 (732) at some point. But now resilio-sync_2.4.4-1_amd64.deb is blocking 48 other packages from auto updating including security updates.
Get:1 http://linux-packages.resilio.com/resilio-sync/deb resilio-sync/non-free amd64 resilio-sync amd64 2.4.4-1 [9,989 kB]
Err:1 http://linux-packages.resilio.com/resilio-sync/deb resilio-sync/non-free amd64 resilio-sync amd64 2.4.4-1
Hash Sum mismatch
Fetched 9,988 kB in 0s (61.2 MB/s)
E: Failed to fetch http://linux-packages.resilio.com/resilio-sync/deb/pool/non-free/r/resilio-sync/resilio-sync_2.4.4-1_amd64.deb Hash Sum mismatch
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?