@npiros85 can you write how and where you are connecting?
The agent is meant to work in this way:
Machine A - your developer machine or machine used for attended/unattended run - you install full PAD client. This can be a physical or virtual machine.
Machine B - a virtual machine where the application is installed. Must be VM.
Then you developed flow on Machine A.
And when you launch flow on Machine A via the cloud or local console, it opens a remote connection to Machine B
From the error, it seems you have installed an agent for VM on your machine A, not B, as expected.