after many times to authorize eBay, I still receive this message.
Urgent Account Attention Needed.
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Hello Tao,
The last snipe we attempted to place for you failed, either because your authorization has expired, or it was revoked on your My eBay page.
As a safety precaution, although all of your snipes are still intact, we set the bid values to zero (0.00) in your sniping dashboard. This is to avoid any unexpected outcomes once you re-authorize, should you choose to do so.
If you'd like to continue sniping, please click to re-authorize your account.
We regret that we are unable to place snipes for you until this is corrected. Please note that most of the capabilities of the service, such as importing your Watch List, are dependent on the authorization.
Kind regards,
Your Friends at BidSlammer

Hello Tao,
Thank you for your question about your authorization. We just updated it manually. Would you kindly check to see if it is working to your satisfaction? If not, we can take the next step.
Thank you for taking the time to write in. Please let us know if we can provide any other assistance.

it is working now. Thanks!