Blower door test not passed, start troubleshooting?

Uh... according to your previous questions, you should have already moved in. The Blower Door Test is done before the drywall cladding with gypsum board.... before! ... so that the spots in the foil can be repaired. Best regards in short

Uh... according to your previous questions, you should have moved in already. The blower door test is done before the drywall covering with gypsum board.... Before! ... so that the spots in the foil can be repaired.

Yes, we are already in. Allkauf Haus stays out of this, we have now established contact with the blower door company. The Allkauf Haus construction manager was here once and took down the foil. Although he only walked through the house and didn’t really check the adhesive spots. He didn’t say more. But we are used to that from Allkauf Haus.

Well, you should have the subscription with the expert by now.
Best regards in brief

Yes, we are already involved. Allkauf Haus is staying out of this,

Subject to deeper knowledge of your contractual situation: consult a specialist lawyer for construction law, have a notice of defects written, set a deadline (done by the lawyer), and proceed. Have you already paid everything?

You probably won't find the gaps anymore as long as you don't have the drywall removed. I would say: probably pretty much everything done wrong.