Thanks a lot. It was indeed the roflnzb. I tried with another group and it worked like a charm from website.As for now:
User - 0 API requests / 20 dl per 24 hours
ViP - 500 API requests / 100 dl per 24 hours
And the "You are forbidden" - dont download nzbs from alt.binaries.roflnzb.* as its private backups ...