I’m getting an error when trying to add product to collection, what do I need to do
From my previous post–(this may not solve your problem, but worth a try)
Try adding one new product to each collection. Others have said that makes the collection display correctly,.
<https://community.zazzle.com/t5/technical-issues/collections-disappearing/m-p/56279>
<https://community.zazzle.com/t5/technical-issues/collections-are-not-displayed/m-p/58128>