In 'Package' field: '�' character cannot be used (only letters, numbers and '-+._' characters are allowed) invalid package name

hi i compile fenix-master(v1.0.10) on ubuntu 20.04 LTS (5.13.0-39-generic)
I get 2 warnings and 1 error message during building-debs does anyone know why? how can i fix this error?

Info: Building debs…
Info: Building package: linux-u-boot-vim3-vendor
dpkg-deb: error: around line 1 when parsing file ‘/home/ertu/Fenix/build/images/.tmp/linux-u-boot-vım3-vendor_1.0.10-2015.01_arm64/DEBIAN/control’: In ‘Package’ field: ‘�’ character cannot be used (only letters, numbers and ‘-+._’ characters are allowed) invalid package name
make: *** [Makefile:2: all] Error 2

ty :smile: