So, Can't log in due to the Launcher not letting me?

[Daisuke1038]

And, ah, this is why. I have no idea what any of this means.

[Acidic]

That one is new to me.
Think Max might be the one to answer this correctly but I can make a stab at it,

The invocation failure message suggests that it tried to start the game and the game start failed.

From this it suggests to me the following to be worth looking at:
A) check the anti virus is not flagging the game, would expect a different message but worth a try
B) check direct x is correctly installed, too long ago to remember exactly the error message for this but it’s step 6 in the game installation instructions.
https://www.returnofreckoning.com/join.php#download

[Daisuke1038]

all right, It took me a little bit to get back but the results of me searching through

I can't find Return of Reckoning in my Firewall, and I have DirectX installed.

[Yaliskah]

Close everything, then take a look in C:\Users\userfolde\AppData\Local\Return_of_Reckoning\

Delete all folders in, then restart launcher.

[Daisuke1038]

Tried it, still gave me the same error.

[Acidic]

all right, It took me a little bit to get back but the results of me searching through

I can't find Return of Reckoning in my Firewall, and I have DirectX installed.

Hmm the firewall ? Did you check anti virus program ?
Also try checking if you running 64 bit or 32 from the cog on launcher , try the one it’s not set to at the mome.
But if king could not sort the problem expectation should drop