Thanks for the info. Before I didn't noticed this. I'll wait till it shows again (hopefully never again).
I also installed vB Bad Behavior:
https://vborg.vbsupport.ru/showthread.php?t=261498
EDIT: I found this info about it:
Mozilla/5.0 (compatible; MJ12bot/v1.4.2; http://www.majestic12.co.uk/bot.php?+)
I now use only this string in spider list settings:
MJ12bot.
I hope it will stop it, maybe
Majestics MJ12bot was too much