(Apologies for answering in English)
The mex file has an error that needs to be fixed before opening the configurator.
In the mex file, change this line:
<setting name="LDFRelativePath" value="src\LIN21.ldf"/>
to this:
<setting name="LDFRelativePath" value="src/LIN21.ldf"/>
The backslash is causing the problem