Do you have any custom code placed in your theme’s functions.php or your wp-config.php that might remove the plugins menu? If not, it could also happen if you have a multisite setup and you are currently not in the network admin.
In the case of a single installation, this can also happen if you do not have permissions for plugin installations. This means that the user you are logged in with in the backend either does not have administrator rights (in which case you will need to contact your project administrator) or the permissions are broken (which can be repaired in various ways).
Thank you Adnan and thread for the replies. I am listed as admin on the Users tab.
This is a website that I started a couple of years ago, but have not done anything with except put up one place-holder post. It is using the latest version of the WP 2017 theme. I have not modified anything from the basic install.
I plan to start using this site soon, but my goal right now is to install the WPConsent plugin in order to be compliant with GDPR requirements for cookies notifications.
I notice also the the Dashboard for this site looks very different from the dashboard from my other three sites.
And also, just to be sure, following question: does your user definitely have the role “administrator”? Simply having the name “admin” would not be sufficient.
Based on the screenshot, it is indeed a multi-site. You can manage plugins in My Site -> Network Admin -> Plugins (wp-admin/network/plugins.php). Multisite is intended for multiple sites using the same WordPress installation. So, all plugins need to be installed for the whole network of sites.
For standard use cases and when you do not require multiple sites, it’s much easier to use a simple site.