Updater.sh fails after factory reset

Hi,
I might have missed it, but I have not found a solution in old posts although there are quite a few similar topics.
After a factory reset (to version 3.2) I had at first a problem with the certificate checks. I managed to circumvent the problem by switching to http (as a temporary measure to reach a version where current certificates are included).

However, I still have an error that lets the update fail:
# /usr/bin/updater.sh
line not found
line not found
line not found
Working on message: 1523675501-15035
Working on message: 1523680158-29204
There is no message to send.
WARN:Requested package luci-i18n-ddns-en that is missing, ignoring as requested.
INFO:Queue install of userlists/turris/10
INFO:Queue install of procd-nand/turris/2015-08-19-b6618ffab8ed4981c57f53929276559698541462
INFO:Queue install of libubus/turris/2015-05-29-f361bfa5fcb2daadf3b160583ce665024f8d108e
.
.
.
INFO:Queue install of kmod-sound-core/turris/4.4.119+0-1-082ea0f4a4e204b99821bedcb349ed54-0
INFO:Queue install of libffmpeg/turris/3.4-0
ERROR:
corruption: The md5 sum of libffmpeg does not match
uci: Entry not found
uci: Entry not found
uci: Entry not found

I couldn’t find any md5 sums to check against manually. So, is the problem that there are none - rather than that they are wrong? Can anyone tell me the right way to deal with this?
Help would be appreciated.