Validation message is not displayed for required fields

[elena-zh]

Validation message is not displayed for the next required fields when they are empty:

• Bidding token
• Auction end time
• Auction cancel date time

Expected: 'Field required' validation message should be displayed when fields are empty.

In addition, there is no validation message for the 'Bidding token' field when it is filled in with an incorrectly formatted address

Expected: 'Invalid address' validation message should be displayed

[elena-zh]

an additional issue is found #32