Hello, I know this could be implemented into the other one.

but i saw some kind of reason for one kind of errors.

On my Computer i have an 4 core CPU and i give 3 for Boinc.

When "QuChemPedIA" is doing 2 threads at the same time one is doing fine and the other one is making only errors.

So the reason could be something arround the Virtual box that it only can handle 1 instance at the same time or something like this., actually i forced manually all other to stop and activace the one by one.

Hello, I know this could be implemented into the other one.

but i saw some kind of reason for one kind of errors.

On my Computer i have an 4 core CPU and i give 3 for Boinc.

When "QuChemPedIA" is doing 2 threads at the same time one is doing fine and the other one is making only errors.

So the reason could be something arround the Virtual box that it only can handle 1 instance at the same time or something like this., actually i forced manually all other to stop and activace the one by one.

What is the error that you are seeing?
If it is this one: "Postponed: VM job unmanageable, restarting later." then you are trying to do too much at once for your machine.
Most Windows users can only use half their cores in this project. If you unhide your computers we could more easily help.

Two thirds of my results turn out to be invalid. But not all of them. Anyone got a clue what the problem could be? I am using a Ryzen 9 3900X, Windows 10, 64 bit.

Many molecules are unstable and leads to non reproductible results. That's a specificity of the project : a high rate of invalid results.