Not booting after update (?) Failed to open \EFI\BOOT\Mokmaager.efi - Not found

I updated tumbleweed around 2 weeks ago and after that it doesn’t boot anymore.
The message I receive when I start up is:

Failed to open \EFI\BOOT\MokManager.efi - Not found
Failed to load image \EFI\BOOT\MokManager.efi: Not found
Failed to start MokManager: Not Found
Something has gone seriously wrong: import_mok_state() failed: Not Found

I have Windows 10 running on the same machine. From there I can access a 500MB device (the boot partition?).
This device contains the path EFI\boot where there are 2 files:

There is one other path: EFI\opensuse which does actually contain a file called MokManager.efi.
My question is: Is there a way for me to recover my system?
If this post is not appropiate or in the right place, please point me to somewhere, where I can post.
This is my first time posting here.


Just copy MokManager.erfi into \EFI\Boot.

Thank you very much! This solved it for me.
Easiest fix imaginable. Have a nice day.