Hi, Please try to uninstall the driver and then install it again.
cd seeed-voicecard
sudo ./uninstall.sh
if it still fails, what image do you use? We test it on Raspbian Operating System(2018.4.18) with below commands.
sudo apt-get update
sudo apt-get upgrade
git clone https://github.com/respeaker/seeed-voicecard.git
cd seeed-voicecard
sudo ./install.sh
reboot
thanks.
Seeed techsupport team