[2019] can't run it since the update

Try the "Clear User Directory" button in your launcher. If the problem persists, please submit a ticket through support.paradoxplaza.com. Apologies for the inconvenience caused.

Please note that 1.7 will not be save game compatible with 1.6.2.

You can always roll back to 1.6.2 through the BETAS tab under properties for the game