Hi Marina_Agossou,
this changeset has created errors in the OSM database regarding self intersecting and displaced lines:

https://tools.geofabrik.de/osmi/?view=geometry&lon=0.88444&lat=7.38677&zoom=15&baselayer=Geofabrik%20Standard&overlays=self_intersection_ways%2Cself_intersection_points%2Csingle_node_in_way%2Cduplicate_node_in_way

https://overpass-api.de/achavi/?changeset=159934547

Can you please fix this?

May be you will like to use JOSMs internal validator before you upload your changes.

Kind regards
Guido