fix observeInput function

views/account/account.php

@@ -29,7 +29,7 @@
             <input type="password" class="text big fullWidth marginTop" name="password_new_confirm" placeholder="New password confirmation" autocomplete="new-password" minlength="6">
             <p id="accountFormError" class="formError justify marginTop"></p>
             <div class="right marginTop">
-                <button type="submit" name="submit" disabled>Save</button>
+                <button type="submit" name="submit_button" disabled>Save</button>
             </div>
             <hr>
             <div class="center">