DO NOT USE backup tool
Please, do not use backup tool. It downloads large numbers of images in short time which leads you to be banned from my hosting. Kyselo then looks completely down from your IP while other connections are completely OK.
I got banned this way. (massive facepalm)
I hope no one other got banned this way. If you know about someone, please let them contact me via my other contacts listed here.
In the near future I will move Kyselo to my own server which I acquired from my friend. There will be proper backup system with big ZIP files generated server side.