have the after one but not the last week's one. I couldn't think that after patch, not working.
Global Lab and KR use a similar launcher, right? There's a chance that something I encountered with the Global Lab launcher might work on KR - try restoring last week's backup and run a repair (you'll probably want to do this in a copy of the KR client), the launcher may download the original version of the game (or at least the earliest one available) and apply every patch that came out since, patch archives are downloaded to a hidden folder patch_temp, when you will have to wait until the launcher reaches last week's update number, and when it starts downloading an update that's one version newer than last week's, kill the launcher, you should have last week's client files at this point if the launcher behaves as I anticipate it to.
Note that you will have to kill the launcher BEFORE it's done downloading the newer version otherwise it may already be patching some files, depending on the update size (some are very small) it may be difficult to achieve this, there are two things you could try to make the process easier:
1. When the update number approaches last week's, kill the launcher, make a backup of the entire game folder so that if you fail to stop the launcher in time you would have a fairly recent backup to keep retrying with (as it would otherwise take countless hours).
2. Try to create a blank, read-only file in patch_temp with a version number 1 higher than last week's with the ".pap" extension, for example, if last week's update number was 600 then you would create a file named "601.pap" (create a new text document and rename it, make sure you properly rename the extension), make it read-only (through properties), you can also make it so that only "SYSTEM" has access to the file in case the launcher knows how to handle with read-only files, and this might cause the launcher to error out once it tries to download an update newer than last week's, causing it to stop.