It has recently occured that a sizeable chunk of users are unable to use the launcher and are met with this error. This error is due to your IP being considered as harmful by Cloudflare and is most of the time due to your ISP using Dynamic IPs and someone using it at some point got caught doing bad stuff with it resulting in a blacklisted IP. The other common reason is the use of a proxy.
Rest assured that we are working on a solution for the users affected by this problem. We will release a new installer probably tomorrow containing an updated DSLauncher. It will also contain all updates we've released up to now.
For the users that aren't affected, the update will be deployed through DSLauncher, so you have nothing to do.
