Fix a bug with product balances (woocommerce)

In our online store on woocommerce there was a bug.
Displays that the products are not in stock, although in fact they are.

For example, the product "Fillet Ducks" (St. Petersburg)
When you go, it displays a die that it is not available
https://i.imgur.com/ZPeczoe.png

But at the same time, there is a product in the admin panel.
https://i.imgur.com/KaCmwzu.png

Suspicions that this happens when updating the product with the "My Warehouse" script.
If you manually resave, the notification will be deleted. https://i.imgur.com/WGdb3LF.png

You need to understand what the cause is and fix the error.

Please respond:
1. Enter your experience in PHP / Wordpress / Woocommerce
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