Help - Error: Open packing details to view the error message

Hi,

I have a product that I am trying to replenish stock, but getting this message

“Error: Open packing details to view the error message”

The Item was being sold via FBA, and then it went to Hazmat, but has now been classed as non-dangerous.

I also have 1 in stock, but it says I am OOS.

Anyone come across this and rectified it?

TIA