This might be related to the driver issue.
Download the driver as per your computer operating setting select 32-bit or 64-bit.
Here are the driver links:
http://www.littlelogbook.net/downloads/VCP_V1.3.1_Setup.zip
http://www.littlelogbook.net/downloads/VCP_V1.3.1_Setup_x64.zip
To check whether a computer is a 32-bit or 64-bit Operating System,
Option 1: Go to Control Panel select System & Security then click on System.
Option 2: Right click on computer & select properties and look for computer operating system under system type.
Option 3: Click on file explorer, open your C-drive
- If you only have Program File you have a 32-bit operating system
- If you have Program File & Program File (x86) have a 64-bit operating system