"Object not found" at installation

Installed plug-ins for VapourSynth and got “Object not found” error on this build:
https://aur.archlinux.org/packages/vapoursynth-plugin-sangnom-git/
Now nothing to be installed even from the official repository with the same error.

I cleaned /tmp and now everything is fine.
At first I put this topic under the Pamac label like a bug report, but the thread was moved to the AUR.

Does not contribute anything