We are sorry to hear that you are facing issues with your Lansweeper installation. If you want to deploy a package at multiple installations at once, we would recommend going through the Deployment\Installer Packages page, select the deployment package and click on the Deploy Now button where you will be presented with the option to select multiple assets at once, run the deployment based on a group or on a report.
Additionally, using Vivaldi as your browser for Lansweeper is not recommended. We only recommend using Internet Explorer, Google Chrome or Mozilla Firefox as browsers. Further on, from the screenshot we are able to see that you were running Lansweeper version 6.0.0.51 at the time, there have been a lot of fixes since then and it is not entirely clear to us if you are currently running a more recent version. If you haven't already, we would recommend updating your Lansweeper installation following the steps in
this knowledge base article.
Lastly, if you would encounter an urgent issue or when you do not get a reply on a topic on the Lansweeper Forum, you can always send in an email to support@lansweeper.com as email is the preferred method of contact for urgent inquiries.