Whenever you need to update you Digital Ocean access token you should do the following:

1. Log in to your Digital Ocean account

2. Proceed to API > Token/Keys tab

3. Press Generate New Token button

4. In the pop up form enter token name, e.g. "Zeus", select all scopes (Read and Write), and press Generate Token 

5. To copy the newly created token, press copy link

6. Go back to Zeustrak. Proceed to Websites > Settings

7. Scroll to the bottom of the screen and paste your new token to the appropriate field. Then click the Check and Save button

8. If everything is OK you'll see this message in the top-right corner. If not, please, contact your support manager.