He continued to express his views, and in February 1940 he was summoned to the district court in Giessen where he was warned by the president of the court, Hermann Colnot, to moderate his views.
Ta jätkas oma vaadete levitamist ning 1940. aasta veebruaris kutsuti ta Giesseni ringkonnakohtu ette, kus kohtu eesistuja Hermann Colnot hoiatas Kellnerit, et ta oma vaateid talitseks.