create table only if database connection was successful

backend/db.js

@@ -11,9 +11,17 @@ const db  = new Client({
 
 // create connection to database
 db.connect()
-    .then(() => console.log('Successfully connected to database'))
-    .catch((err) => console.log('Error on connecting to database: ', err));
-
+    .then(() => {
+        console.log('Successfully connected to database');
+        // if connection is succesful create tables
+        createTables()
+            .catch((err) => {
+                console.error('Error creating tables:', err);
+            });
+    })
+    .catch((err) => {
+        console.error('Error connecting to database: ', err);
+    })
 async function createTables() {
     try {
         // Create accounts table