Failure to Update OJS from Version 3.1.2-4 to 3.2.1-4

I am using OJS version 3.1.2-4.

We have previously manually modified the database multiple times while attempting to update OJS to the latest version. Unfortunately, we lack information about the necessary database tables. Consequently, we are unable to successfully update OJS. Could you kindly provide us with a list of essential tables for OJS version 3.1.2-4? This will enable us to structure the database accordingly and proceed with the OJS update. Screenshots, logs, or any pertinent information that could aid in investigating this issue would be highly appreciated.