Fix

feature/library/src/main/java/one/nem/lacerta/feature/library/LibraryPageFragment.java

@@ -115,7 +115,8 @@ public class LibraryPageFragment extends Fragment {
                 Toast.makeText(getContext(), "Folder selected! folderId: " + folderId + ", folderName: " + folderName, Toast.LENGTH_SHORT).show();
                 FragmentNavigation fragmentNavigation = (FragmentNavigation) getActivity();
                 assert fragmentNavigation != null;
-                fragmentNavigation.navigateToFragment(LibraryPageFragment.newInstance(folderId, folderName, new PublicPath().parse(publicPath).resolve(folderName).getStringPath()));
+                logger.debug("LibraryTopFragment", "publicPath: " + publicPath);
+                fragmentNavigation.navigateToFragment(LibraryPageFragment.newInstance(folderId, folderName, publicPath == null ? new PublicPath().parse("/").resolve(folderName).getStringPath() : new PublicPath().parse(publicPath).resolve(folderName).getStringPath()));
             }
 
             @Override

model/src/main/java/one/nem/lacerta/model/PublicPath.java

@@ -39,6 +39,10 @@ public class PublicPath {
     }
 
     public PublicPath parse(String path) {
+        if (path == null) {
+            this.path.clear();
+            this.path.add("/");
+        } else {
             if (path.startsWith("/")) {
                 this.path.clear();
                 path = path.substring(1);
@@ -48,6 +52,7 @@ public class PublicPath {
                 Log.d("PublicPath", "parse: " + p);
                 resolveInternal(p);
             }
+        }
         return this;
     }