Another member has PM'd me with this message regarding WR 4.6.1
I purchased the pro version 2 years ago and all updates have worked perfectly fine up to 2018 _v4.5.2 and today I tried to update to v4.6.1 and I get this pop up screen "Houston we have a problem".
Regardless of what I put into the "Buy Pro\Enter Key" screen name (email, name,nickname) and my license code is: xxxxxx0348 , it still shows the "Houston we have a problem" screen !
I've just updated my Pro version to 4.6.1 on two machines without problems.
I've advised that member to uninstall/reinstall.
Normally WR will show as free version until it can phone home to confirm its status, but you obviously have an Internet connection as that member has.
See what an uninstall/reinstall does for you, although it could have been because of a fault on Tweaking.com's end so trying again before the uninstall/reinstall may prove more successful.