diff --git a/com-dict-client/.env.sample b/com-dict-client/.env.sample
deleted file mode 100644
index 50c326a..0000000
--- a/com-dict-client/.env.sample
+++ /dev/null
@@ -1,4 +0,0 @@
-REACT_APP_FIREBASE_API_KEY =
-REACT_APP_FIREBASE_PROJECT_ID =
-REACT_APP_FIREBASE_MESSAGING_SENDER_ID =
-REACT_APP_FIREBASE_APP_ID =
\ No newline at end of file
diff --git a/com-dict-client/src/components/Footer/FooterPage.js b/com-dict-client/src/components/Footer/FooterPage.js
index 1a4af6a..b3c33f7 100644
--- a/com-dict-client/src/components/Footer/FooterPage.js
+++ b/com-dict-client/src/components/Footer/FooterPage.js
@@ -80,7 +80,7 @@ function Footer() {