diff --git a/utils/input.go b/utils/input.go
index 9699edd..4c26a23 100644
--- a/utils/input.go
+++ b/utils/input.go
@@ -177,9 +177,6 @@ func ValidateServerInput(server string) bool {
 		return true
 	}
 
-	ips, err := net.LookupIP(host)
-	if len(ips) > 0 {
-		return true
-	}
-	return false
+	ips, _ := net.LookupIP(host)
+	return len(ips) > 0
 }
diff --git a/utils/skin.go b/utils/skin.go
index db50a99..1c757e5 100644
--- a/utils/skin.go
+++ b/utils/skin.go
@@ -41,6 +41,10 @@ func (skin *Skin) getGeometry() (*SkinGeometry, string, error) {
 		return nil, "", err
 	}
 
+	if len(data) == 0 {
+		return nil, "", nil
+	}
+
 	arr, ok := data["minecraft:geometry"].([]any)
 	if !ok {
 		return nil, "", errors.New("invalid geometry")
diff --git a/utils/skinpack.go b/utils/skinpack.go
index ee60e4c..8512c81 100644
--- a/utils/skinpack.go
+++ b/utils/skinpack.go
@@ -103,8 +103,8 @@ func (s *SkinPack) Save(fpath, serverName string) error {
 		if s2.skin.HaveGeometry() {
 			geometry, geometryName, err := s2.skin.getGeometry()
 			if err != nil {
-				logrus.Warnf("failed to decode geometry %s", skinName)
-			} else {
+				logrus.Warnf("failed to decode geometry %s %v", skinName, err)
+			} else if geometry != nil {
 				geometryJson[geometryName] = *geometry
 				entry.Geometry = geometryName
 			}