I am currently running a live OJS 3.0.1 site and decided to upgrade to the latest OJS 3.2.1 Version. So I tried on localhost using WamServer with PHP 7.2.33 and MySQL 5.7.31
I took the DB backup also Sync the Config.inc.php file. When I run the update I am getting the following error;
Errors occurred during installation: `A database error has occurred: Table 'review_assignments_tmp' already exists`
I have also checked my live site DB, and there is not review_assignments_tmp table. I tried to delete and proceed with the updated on localhost, and then I receive “A database error has occurred: Duplicate column name ‘email_id’”. And then again same review_assignments_tmp error.
I shall be grateful if someone could suggest a possible solution.