Hi @vgama.
Please double check that you correctly followed the installation instructions:
https://github.com/bareconductive/bare-conductive-arduino#install
Note that it is not correct to copy the avr folder to the Documents folder, so either you have not precisely described what you did, or else you did not correctly follow the instructions.
After following those instructions, you should be able to select Tools > Board > Bare Conductive Boards (in sketchbook) > Bare Conductive Touch Board from the Arduino IDE menus. If you don't see a "Bare Conductive Boards (in sketchbook)" option under the Tools > Board menu, let us know and we'll provide further support in the installation of the "Bare Conductive Boards" platform.
After selecting Tools > Board > Bare Conductive Boards (in sketchbook) > Bare Conductive Touch Board from the Arduino IDE menus, upload the sketch to the board again. Hopefully it will work as expected.
Then you didn't burn the bootloader. Even if you did select Tools > Burn Bootloader, this requires having a special ISP programmer connected between your computer and the Bare Conductive Touch Board, so it would only fail without any harmful consequences if you did accidentally perform a "Burn Bootloader" operation.