I observed the same behavior after I did an update I think its something with the new kernel. If you comment out this line in the install script by putting the hashtag in front.
# sudo rm -rf Radioberry-2.x
Then run the script again it won't delete the clone of the repo. Then go down into
/tmp/Radioberry-2.x/SBC/rpi-4/devcice_driver/
in the file Radioberry.c comment out line 359 with // then go run the install scrip again in /tmp this is a workaround that got me going again.