Snadbox Not working

[electricalwholesaler365uk]

Every time I login to https://sandbox.ebay.com/ and try to navigate to selling area of the sandbox it redirect me to live ebay login page?

[soundman333222]

I just get time outs:

Click on Sell: sell.sandbox.ebay.co.uk took too long to respond.

Click on Summary: pages.sandbox.ebay.co.uk took too long to respond.

Apparently my code has listed an item on the sandbox, but I've no way of finding it.