Falling in Void Forever When Logging into Hypixel

[ImadLegend]

I boought minecraft for my brother 1 month ago and Hypixel was completely fine but now after 2 weeks he is facing a problem that when he logs into hypixel he just automatically goes into the void and after about 5-8 minutes he is teleported to the lobby but he still cant join any server like skyblock and no button works i would really appreciate if someone could help me and the video is mentioned below u can watch it,Thankyou.
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https://imgur.com/a/ZnaBVIM

View: https://imgur.com/a/ZnaBVIM

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