CS69pro black color can't acees via Browser

I use vstarcam cs69pro in thailand.  I have already enable the camera plaintext password and input  Plaintext password to IE or chrome But it cannot access and show cannot open url.I have 2 pieces of this model it have same problem. But in other model that i have it can open normally. Can you fix it in Firmware.Or How can i fix it.
Firmware is 48.111.173.15

Dear customer ,
The camera username is admin .
The plaintext password must be only  8-bit numbers .

hbadmin replied at 2022-7-18 10:01
Dear customer ,
The camera username is admin .
The plaintext password must be only  8-bit numbers  ...

user admin and pasword 8 digit number .Can not acess .It because of camera. same both cs69pro.other model that i have is acess normally