Clarify the allegation from the file first.
Aggravated coercion under section 106 StGB requires more than mere pressure in a conflict. Content, intensity and purpose of the threat are decisive, as is whether the aggravation is actually supported by the file.
The basic coercion offence is section 105 StGB. Section 106 StGB aggravates the allegation for specific categories. From a legal perspective the first step is to identify which concrete aggravating element is alleged.