zone-commit fail, invalid parameter

Hello, i have issue with knot dns 3.0.7 on raspbian 10. zone-commit <myzone> return invalid parameter. The context of this error is :

knotc> zone-begin example.org.
knotc> zone-set example.org. example.org. 3600 IN A 198.51.100.10
OK
knotc> zone-commit example.org.
error: [example.org.] (invalid parameter)
[knot.conf](/uploads/4f1ca0efceb12d1458b64a5c95fa381b/knot.conf)