An unexpected error occurred while signing in. AMD-Action:authenticate:SP

Hi!

This week I did a clean install with cmmd-R. I totally wiped the hard drive (there were no problems a few weeks ago) but the mac was still a bit slow.

But when I try to “install macOS” in utilities. There are two disks I can choose from, the disk I partitioned (os journaled) and the recovery HD(this one is greyed out)

So when I choose the first one, the one I erased and partitioned, it gives me the following error; An unexpected error occurred while signing in. AMD-Action:authenticate:SP. I have googled and tried to type ddmmhhmmyy in the terminal (in pst, pt, and cest) and also csrutil enable and csrutil clear. But nothing has worked so far. I am out of options. Anyone has an idea to my problem?

Maybe I did something wrong in disk utilities? I added the photos. The only one I can erase and partition is the one called Fleur.

Please help!

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