Hoi Jeroen,
Bit of a strange log you found, if i now check on albert's site for Germany /Yesterday 19/04/2011 i can't find it at all, only in the Lippe section.
If i search on this site i find the following history for yesterday.
Looks like it landed Cyprus on the 18th, departed the 19th and it landed yesterday somewhere in Italy from where it departed today again.
perhaps a miscode /bogus or something like that??