Verb conjugation of "scheitern" in German

I wanted to tell you that we have uploaded a successful version (with Peter). In Annex I send the profile. It is very similar to the last version, just a few words less in each lesson.
Productivity declines when it is too hot outside. Oscar therefore closed his laptop and production unit and headed towards the lake where his pretty girlfriend was waiting for him. Once he arrived he bought a ice cream as a surprise.
I understand everything you write. It's all right. I've studied in school more than 50 years ago. I recommend the Augusta course. You pay a little more, but it is worth it in any case.