English: 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.
Translation: Amseqdac i tebɣiḍ ad sewḥeleḍ yetsewḥel yakan dɣa yetweffer. Imi ur tesɛiḍ ara azref ''hideuser'', ur tzemreḍ ara ad ẓṛeḍ neɣ ad beddeleḍ asewḥel n umseqdac agi.