Catching biometric tensor decode errors.

src/biometrics.js

@@ -75,9 +75,10 @@ async function getBiometrics(avatarEntry) {
 		return null;
 	}
 
-	const tensor = human.tf.node.decodeImage(buffer, 3);
+	let tensor;
 
 	try {
+		tensor = human.tf.node.decodeImage(buffer, 3);
 		const result = await human.detect(tensor);
 
 		return result;