ADT 2.58: An internal error occurred during: "Loading transport requests...". Parameter "uri" must not be null

Hi,

After installing ADT 2.58 I got the following error when I click on transport request in the transport organizer tab:

An internal error occurred during: "Loading transport requests...".

Parameter "uri" must not be null

There is no dump in the backend.

Version: Mars.2 Release (4.5.2)

Build id: 20160218-0600

ADT versions in detail:

This SAP Note was also installed:

Current BASIS level in the backend:

I don't think it's a backend issue, because it worked fine before installing 2.58.

Thanks,

Peter