diff --git a/Dockerfile b/Dockerfile
index 5011607..c77c4bf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -113,7 +113,6 @@ COPY ./page ./page
 COPY ./routes ./routes
 COPY ./scripts ./scripts
 COPY ./server ./server
-COPY ./static/*.css ./static/
 COPY ./static/*.ts ./static/
 COPY ./static/*.ico ./static/
 COPY ./static/*.svg ./static/
diff --git a/routes/api/task.ts b/routes/api/task.ts
index 9af9c58..40b3b22 100644
--- a/routes/api/task.ts
+++ b/routes/api/task.ts
@@ -64,7 +64,6 @@ export const handler: Handlers = {
         socket.onerror = () => {
             removeListener();
             clearInterval(interval);
-            logger.error("WebSocket error.");
         };
         socket.onmessage = (e) => {
             try {
diff --git a/tasks/download.ts b/tasks/download.ts
index d7f4199..6994eae 100644
--- a/tasks/download.ts
+++ b/tasks/download.ts
@@ -291,7 +291,7 @@ export async function download_task(
                         }
                     }
                 }
-                logger.log("Already download page", i.index);
+                logger.debug("Already download page", i.index);
                 return;
             }
         }