The user you are trying to block has already been blocked and hidden. Since you do not have the hideuser right, you cannot see or edit the user's block.
MediaWiki:Cant-see-hidden-user
Інститут фізіології ім. О. О. Богомольця
The user you are trying to block has already been blocked and hidden. Since you do not have the hideuser right, you cannot see or edit the user's block.
