Can't remove (delete) apps

I just realized in the last 3 days that I can't remove any apps. I'm not talking about Apple apps, it is third party apps (VLC and Nextcloud desktop client for Mac) that I am trying to remove.

I have been using iTrash form OSXBytes for several years with no problems until 3 days ago. Their support team tells me I'm the first to report the problem. I have tried dragging the apps to Trash, but all that happens is the app returns to it's position in Launchpad.

I using a 2019 MacBook Pro running Catalina 10.15.6.

Suggestions would be greatly appreciated,

Billed