Problem with VMa405 (multiple definition of `RFID::RFID(int, int)' )

heya! I have trouble Compiling the VMa405 code to my arduino, The following problem is linked in pastebin. My secound question is if Velleman have a general discord channel for more direct help? If not we really need one! Thanks! :slight_smile:
https://pastebin.com/Wdbd9mjf