Since I don't MSI so that I install your module version 1.0.9 for my site M2.3.6.

However, there is an error when I add the email address and click to button Notify Me, it shows a message: "We can't update the alert subscription right now".

I go to the backend Manage Customer Subscriptions and see that the email was recorded.


To fix this error, please edit file app/code/Bss/ProductStockAlert/Controller/Add/Stock.phpas below:

Or download the file attached and override the current files on your site.

 If you need any further assistance, please feel free to contact us. We'd be happy to support!