The first caller has good advice -- call eBay.
Could be you listed something that eBay doesn't allow.
Or --- it was a VeRO violation --- someone complained it was a fake.
Yes, Ebay can remove a listing if they deam it a violation.
They obviously have. You'll get an e-mail explaining why. If you don't, give them a call.
I am selling an item in ebay and I had 2 bids. I've looked again at it and the item has been removed and it says that there was an item error and there was an invalid item ID code. What do I do? They can't just take my item off?!!!