Can't find gunz.exe .. Its missing.
Here's the log :
Log start : Sat Oct 14 11:14:57 2017

Current Directory : D:\INFINITY GUNZ\Freestyle GunZ
11:14:57:022 [APP] OS version : Windows 7 Service Pack 1 (Build 7601)
11:14:57:069 [APP] Window created successfully.
11:14:59:148 [ZUpdate] Create.
11:14:59:148 [ZFileTransfer] Create.
11:14:59:164 [ZFileTransfer] Create successfully complete.
11:14:59:164 [ZFileTransfer] Open connection.
11:14:59:164 [ZFileTransfer] Open connection successfully complete.
11:14:59:195 [ZFileTransfer] Change directory.
11:14:59:211 [ZFileTransfer] Change directory successfully complete.
11:14:59:211 [ZUpdate] Create successfully compete.
11:14:59:226 [APP] Download patch info file
11:14:59:226 [ZUpdate] Start update.
11:14:59:242 [ZFileTransfer] Download file : patch.xml.comp to ./patch.xml.comp
11:15:01:171 [ZFileTransfer] Download successfully complete.
11:15:01:193 [ZUpdate] Get update info.
11:15:01:206 [ZUpdate] Get update info successfully complete.
11:15:01:219 [ZUpdate] Check valid from patch list.
11:15:01:259 [ZUpdatePatchNode] Needs to update : Gunz.exe (not exist)
11:15:0362 [ZUpdate] Check valid from patch list successfully complete.
11:15:0366 [ZUpdate] + Total patch file count : 1
11:15:0370 [ZUpdate] + Total patch file size : 4023296 bytes
11:15:0374 [APP] Exist patch file(s)
11:15:03:582 [APP] Start file updating...
11:15:03:604 [ZUpdate] Patch files.
11:15:03:617 [ZFileTransfer] Download file : Gunz.exe to D:\INFINITY GUNZ\Freestyle GunZ\PATCH\Gunz.exe_
11:18:09:002 [ZFileTransfer] Download successfully complete.
11:18:1052 [ZUpdate] Successfully download '.\PATCH\Gunz.exe_'
11:18:1052 [ZUpdate] Patch files successfully complete.
11:18:1067 [ZUpdate] Move patch files.
11:18:1083 [ZUpdate] ERROR : Invalid CRC '.\PATCH\Gunz.exe_'
11:18:1083 [ZUpdate] Move patch files successfully complete.
11:18:1083 [ZUpdate] ERROR : Cannot move patch files.
11:18:1098 [APP] ERROR - Update fail
11:18:1098 [APP] Updater error message :

Invalid CRC from the downloaded patch file. : .\PATCH\Gunz.exe_
[Tip] Please check your anti-virus program and firewall running on your system.

11:18:1098 [App] File transfer error message :