Error -110 in NetHunter store

Attachment 4872
Hello eveyone. When I'm trying to update nethunter app or download any other app (OpenVpn for example) I get the next error: "Error -110: The system failed to install the packge because of sistem issues". After some time, all apps disappear and thre is nothing to download. I'm running the last version of nethunter on mi 9t, miui 11.0.6. I have searched the whole internet but found nothing. Any help wil be highly appreciated. Thanks in advance.