How can I file a report, it asks for an item number that has not closed, but it is correct?

[carolandpups]

Every time I try to file a report, for a different reason every time, I am unable to do so as I get the error message:

Please provide the correct information in the highlighted fields.
Please enter a valid item number for a listing that has not ended.

But there is no highlighted field, and the item number is correct.

[pixiesen2012]

you need to use a different browser or try clearing cookies then use the report link

[carolandpups]

Have tried that, and it makes no difference.