I'm being punished for running out of stock. How do I recover?

I’m an FBA seller who’s just been able to restock after roughly 3 months of having no stock in the FC’s. As much as I tried, covid affected every part of the supply chain and shipping prices so this was the earliest I could get my stock manufactured and sent into Amazon.

Now, it appears I am being punished for this. Before this mess, my organic rank had always been high and I always appeared high up the first page for the search term “laundry bags” and “laundry bag”. Now, my product doesn’t appear at all in any of the first 7 pages. Today, for example, I used PPC to gain some sales and get some traction in the hope my organic rank would start to creep up over the course of a few days. The sales gained from this PPC campaign has boosted my sales rank from 250,000 to 21,000 but I still don’t appear organically anywhere at all. Previously my sales rank used to sit around the 20,000 mark and this was enough to ensure I sat high on the first page and never left, this went on for the 8 months after my product first launched until March.

I understand Amazon’s reasoning for this, it makes sense to prioritise the products/sellers who they can rely on to have a constant flow of stock and suppress the ones who don’t. However, going forward I’d just like to know if there’s anything I can do to get out of this hole? Has anyone had any experience of this? I have read stories of peoples products never recovering from this, I’d hate for that to be the case. Any help would be great!

Thanks