Someone is continuously changing the international borders between Greece and Albania ignoring the legal and binding delimitations between those two states. Furthermore that person in not only placing a small part of Greek territory inside Albania he is evenly dividing Lake Gistove between Greece and Albania. 
Primary Sources:
https://akpt.maps.arcgis.com/apps/webappviewer/index.html?id=ff270e99f5be45f19c7b7a1e3e618b27
https://shop.geospatial.com/publication/38PCREFVGPMH4RPD0MSAVZHMV6/Albania-1-to-100000-Scale-Topographic-Maps