Hello @mouli
Thank you. Yes, you are correct. The plugins are in /wp-content/plugins.
Yes, I did import the users from the original multisite. I had to set up myself a login through the database using PhpMY admin.
Then I was able to log in once, then I checked to see what the highest level of access there was and it administrator.
I set up an admin user in the wp dashboard. Then logged in that way.
However, I still get no access to the plguins in the dash.
I even changed the plugin-install.php to 775 just to see what would happen and I still get no access.