Better error handling when using source
Better error handling when using source

theodi/open-data-certificate,zoul/open-data-certificate,Motejl/open-data-certificate,theodi/open-data-certificate,Motejl/open-data-certificate,zoul/open-data-certificate,theodi/open-data-certificate,zoul/open-data-certificate,Motejl/open-data-certificate,Motejl/open-data-certificate,ahmadassaf/open-data-certificate,ahmadassaf/open-data-certificate,ahmadassaf/open-data-certificate,ahmadassaf/open-data-certificate,zoul/open-data-certificate,theodi/open-data-certificate