Construction company halts work despite overpayment

Forget the nonsense about selling. That would be a total loss of the building costs. The 130k€ are not currently lost, they are tied up in the property. A part is overpaid, yes, that is the damage plus maybe 10k€ to fix the mess.
Waiting until the trial, possibly insolvency and lawyer fees only increase the loss. It can happen. Look for architects and continue building. Beforehand, discuss this goal with a lawyer and establish legal certainty (prepare/execute extraordinary termination, etc.). Claims for recourse are then a minor issue that can be pursued or not.

Wait! When the OP said 130k, did she also mean an assumed total loss of the construction site?

Because the construction site obviously still has a value. (At least I still assume so!).
Then the worst case would be well below 130k. In that case, I would personally do everything to cleanly settle the matter with the current general contractor and then resume construction as quickly as possible!

@OP: Please don’t forget that 99% of construction errors can also be corrected. Especially if you are still in a relatively early construction phase!!! It often looks worse than it actually is!

For me, you are considered a [repeat dispensable]. Keep your thoughts, if you are so negative, then to yourself.

The statement is not a cat, but still bites its own tail.

The loan is there after all. Ok, it now only lasts up to the shell stage,

If I understood correctly, it has not even been tapped yet, i.e. lost so far is "only" the parental loan, and thus continuing construction is not economically endangered, rather shaky is the internal family repayment.

Tell me guys, what is wrong with you???? What do you mean "pulled out of a hat"? Do I have to register here first if I am looking for solutions? Don't you have your own problems that some people here act so superior?

That's what I mean. Pure stubbornness. It's always someone else's fault.

In fact, I am now also out (when it comes to responses). Attempts are being made to provide assistance, but the purely negative underlying tone remains. I consider myself too good for constant pity, because the topic is not moving forward. However, I will continue to read along. I just need to get some popcorn. By the way, I didn't like what KlausiMausi wrote either. But even I, who really dislikes the Nazi card, count the word "Untermensch" as absolute Nazi rhetoric.

Can someone give me advice on what else I can do? It can’t be that we still have to watch Mr. Xxx finance his new company with our money while everything is going down the drain for us.

Forget the nonsense about selling. That would be a total loss of the construction costs. The 130K€ are not really gone right now; they are invested in the property. Part of it is overpaid, yes, that is the damage plus maybe 10K€ to fix the botch. Waiting for the trial, possibly insolvency, and lawyer fees only pile up the loss. That can happen. Look for architects and keep building. First discuss this goal with a lawyer and secure legal certainty (prepare/carry out extraordinary termination, etc.). Claims for damages are then a side issue that can be pursued further or not.

When the thread started, posts about continuing to build were dismissed. The goal was to get money back. Then it somehow went to continuing construction, today suddenly

Basically, everything is said here. OP wants to know what she can do. Unfortunately, only regarding the builder, how to take revenge or sue for rights. The little house doesn’t matter at all—only being right matters. Some have advised from the beginning here to continue by yourself with EL or another company so that the money invested was not for nothing. After all, there is a countervalue of the financial services rendered. Were these tips dismissed? If so, probably only because few addressed the real problem and not the pseudo-problem. Ultimately, one can only start here again to regain joy in life. Dear OP, your commitment is not necessarily the right path; at least your goal is not what makes your family happier. It only satisfies you. Your family wants to live and dwell, not argue for years.

It's very easy to talk like that when you are not affected. Even if you are probably reasonable and objectively right.

I am still not sure whether what is written there is useful or just a big mess.