Hi i found the solution for this problem.

First of all i  also got access denied if iwant to access cimbclicks.com.my website. Similar with in the picture on 1st thread. However i can access it via edge and internet explorer i guess it must something wrong with mozilla firefox.

I try to access cimb biz channel . No problem also no problem with cimbclicks.com.sg

So what i did i click cimbclicks.com.my and click on the padlock at the url ( usually for secure https) link it will show padlock.

Then i go to site setting

Then i click clear data and reset permission.

It solved