Prestashop update from 1.7.7.8 to 1.7.8.8

I have a. trouble. updating my prestashop store from 1.7.7.8 to 1.7.8.8 (latest stable version). Build in one-click upgrade doesn't work and manual upgrade also didn't work. I need someone with prestashop experience to upgrade it and make sure no error come and the system works properly. I use Cloudways hosting and I have just cloned my server, so I can give credentials for safe environment without compromising the working webstore. When we see that all works fine, we can implement the changes to the live store.