Update server/resource.py

server/resource.py

@@ -21,4 +21,7 @@ class Resource:
         
 
     def get_encoded_data(self) -> str:
-        return self.cutted_str + ((4 - len(self.cutted_str) % 4) * "=")
+        try:
+            return self.cutted_str + ((4 - len(self.cutted_str) % 4) * "=")
+        except Exception as e:
+            return self.previous_cutted_str + ((4 - len(self.previous_cutted_str) % 4) * "=")