[bitfolk] Bitfolk apt-cacher

I have in the back of my mind that there's an email thread that may be related to this, but I can't find it in my mail archives unfortunately - it may even not be this list. Anyway... I've just been looking to do a do-release-upgrade from Ubuntu 16.04 to 18.04 and come across a raft of error messages along the lines of: Err http://apt-cacher.lon.bitfolk.com/ubuntu/gb.archive.ubuntu.com/ubuntu bionic/main Sources 403 Forbidden file type or location: /ubuntu/gb.archive.ubuntu.com/ubuntu/dists/bionic/main/source/by-hash/SHA256/0e05b8e93cbdfe5d41306e9d34c893fa23f3087a58c637b882cb0f133375a133 [IP: 2001:ba8:1f1:f079::2 80] My Google-fu is failing me at the moment as nothing I'm finding is quite matching up, so I thought I'd see if the collective knowledgebase of fellow Bitfolk folks had come across this. One way around, I guess, would be to bypass the Bitfolk cache, but that doesn't seem to make sense, particularly in the long run if the change ends up needing to be permanent. Is there a change I can make locally, or is it down to the Bitfolk cache itself, possibly waiting for a file to be re-cached? I'm guessing it is likely related to recent updates to apt. -- Paul Tansom | Aptanet Ltd. | https://www.aptanet.com/ | 023 9238 0001 Vice Chair, FSB Portsmouth & SE Hampshire Branch | http://www.fsb.org.uk/ ============================================================================= Registered in England | Company No: 4905028 | Registered Office: Ralls House, Parklands Business Park, Forrest Road, Denmead, Waterlooville, Hants, PO7 6XP