Temporary server congestion or local browser cache overload.
You must never download copyrighted material (such as music videos, movies, or content belonging to independent creators) to re-upload, distribute, sell, or monetize it without explicit written permission from the original creator. Doing so violates copyright laws and the terms of service of the hosting platforms. Final Thoughts i 6buses video downloader free
The video might be age-restricted or private. Log into your YouTube account within the downloader's browser (if supported) or use a different tool. Temporary server congestion or local browser cache overload