xioami mi11

Hello. I have been trying to install AnTuTu Benchmark on my Mi11 with the Xiaomi.eu beta ROM, but I haven't been able to. At the end, I get an error and a text saying "Install it using GetApps". As far as I know (I've tried), it's not possible to install GetApps. So, is there any way to have...

I have a xiaomi mi 11 but it does not allow me to update to the version miui 12.5.21.2.3 it throws me the message "All the links are offline please try later" someone knows why this is due or what I have that makes.