I tried to list an item this morning, but got a error message 'this page not working' when I clicked 'list'
Can someone please advise as this is first time of trying and I probably did something wrong?
Thanks

I had a problem with the N'porium some while back and got a very helpful answer:

https://www.ngaugeforum.co.uk/SMFN/index.php?topic=52917.0

I've no idea whether this is the same issue that you are having but I offer it as something to try. Somebody may come up with something better.

The N'porium is a temperamental little chap, but can be persuaded to do what you want if you talk to it very very nicely.

Cheers,

Chris

Seems to be working OK.  Hopefully Papyrus's advice will be what you need.  Let us know if it doesn't work.