Keybow stopped working

Hi, I have Keybow Mini for about a year. I haven’t used it for a couple of months. When I wanted to use it again on the same computer it doesn’t work. Keybow shows changing colours on the keys, but it doesn’t cause typing in the text editor. I tried many things: formatted SD card FAT32; re-copied files on SD card; kept the same default settings. The same result: doesn’t present typing in the text editor.

I have Windows 10 64bits
|Processor|Intel(R) Core™ i7-8705G CPU @ 3.10GHz 3.10 GHz|
|Installed RAM|16.0 GB (15.8 GB usable)|
|System type|64-bit operating system, x64-based processor|
All windows updates up to date

Could you please help
Thank you
Jozef