it's using the same host.
Hi admin team + anyone who wants to solve this in the future....
i painstakingly finally found out what was going wrong. I accessed the phpmyadmin and found that in the wpXX_options table, there was a missing value that was causing this. It was the x_product_validation_key. I compared this with another clean install which "worked".
Here's the code for anyone in the future:
autoload) VALUES ('150', 'x_product_validation_key', 'LICENSE KEY', 'yes');
Replace wpXX with your table name
and replace LICENSE KEY with your product key.