Hello Andreamygii,
We see you have questions related to uninstalling apps on a Mac and we're happy to assist.
You've taken a couple of great steps already. If the app cannot be removed via Launchpad, then it was not installed from the Mac App Store. This would require it to be removed from Finder. While most apps will appear in the Applications folder, the app in question may be located elsewhere. Use How to uninstall apps on your Mac under the section "Use the Finder to delete an app" to identify how to search for the app you're attempting to remove. If you are still unable to locate the app in question, contacting the developer of that app for additional uninstallation options may be necessary.
Cheers!