Canias ERP interview questions

The worst interview I have ever had. While the job advertisement was in English and did not specify any German language requirements, during the interview, the interviewer mentioned that a minimum B1 level of German was required. Although the interviewer initially spoke German, she had no issues switching to English when I requested it, which I appreciated. After the introductions, she asked me a few questions, to which I responded. However, when it was my turn to ask questions, there were multiple instances of extended silence after my inquiries. I had to ask whether she was still on the line, and she would then respond. This happened a few times, and on the last occasion, there was about 30 seconds of silence before the call was unexpectedly disconnected. I attempted to call back but did not receive a response. I would appreciate any clarification regarding this experience, as it left me with some uncertainty about the outcome of the interview.