change hints

src/app.ts

@@ -30,7 +30,7 @@ app.get('/user_avatar/ygobbs.com/:username/:size/:filename.png', async(req, res,
       { 'Content-Type': 'image/png' }
     ).send(buffer);
   } else {
-    res.status(400).send(`Failed to fetch avatar.`);
+    res.status(404).send(`Avatar not found.`);
   }
 });
 

src/avatar.ts

@@ -99,7 +99,7 @@ export class Avatar {
 					responseType: "arraybuffer"
 				})).data as Buffer;
 			} catch (e) {
-				console.error(`Error fetching original image of ${username} ${url}: ${e.toString()}`);
+				console.error(`Error fetching original image of ${username} ${url} : ${e.toString()}`);
 				return null;
 			}
 			content = buffer.toString("base64");