also close the add factlink form when something goes wrong and give error
also close the add factlink form when something goes wrong and give error

Factlink/factlink-core,Factlink/factlink-core,daukantas/factlink-core,daukantas/factlink-core,daukantas/factlink-core,Factlink/factlink-core,Factlink/factlink-core,daukantas/factlink-core