I tried to update Drupal to 6.28 version but wasn't able to upload all the files. My webhoster found out that my internet connection speed was much slower than theirs and therefore the connection was repeatedly broken which prevented me to upload all the files. The webhoster said that the only way, is for him to upload the files for me and so he did. When I went on my website, I got the following message:
Drupal already installed
To start over, you must empty your existing database.
To install to a different database, edit the appropriate settings.php file in the sites folder.
To upgrade an existing installation, proceed to the update script.
View your existing site.
What did actually went wrong and how can I fix this?
I have no knowledge of Drupal and would appreciate it if anyone can guide me through the solution.
Many thanks in advance.