track is stable registred moved respect every map (offline as online)

two days ago I registred my last mountain bike track
...but if charge the track or the route over every map (as online as offline) the track is wrong moved for the total itinerary, the distance is regular and stable if I try to match any reference point

At first view I'm thinking only about a single bad calibration map but It's impossible this as the error distance is the same for any map (offline and online)
I've mounted the track on my various smartphone maps, as on mobac and also on google earth, always the same distance error ...

please do you have the solution ? Can I send to you the gpx tracks for your view and a better apprecciation of this problem ?
many thanks in advance