Hi @rivage
In this case, you need to increase your server memory limit. Please keep in mind that even if you have set the limit to a high value, if your server only has a low memory then the setting won’t do anything. In this case, you need to upgrade your server by contacting your hosting.
Another option is to clone your site to your local machine and do the database upgrade there. That way you won’t have any limitation. After that, you can replace the database of your live site using the one from your local machine. Please don’t forget to backup your site before doing it.
I hope this makes sense 🙂
