Hi Pham Thanh !
Loi nay da duoc chi rat ro roi !
Day thuc ra ko phai la loi ma do trong qua trinh ban cai dat ban de trinh duyet doi lau qua, thong thuong la 30" do do no se thong bao cho ban da bi time out :
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De cai tiep ban chi can tat trinh duyet di sau do bat lai va go duong dan de cai lai tu dau !
Chuc thanh cong !