Not receiving the 6-digit code email

Hola and good day guys

I can login successfully, but needs me to check 6-digit code in email.

Before immigration, login dropbox never needs me to check 6-digit code in email.
After immigration, it needs me to check 6-digit code in email.

I can login to my email to check the 6-digit code but then the 6 digit code not there and other emails as well

And is it possible to link to other email address?

I only want to login Dropbox without check email 6-digit code, so what can I do?

Can you please check this email if still valid?

Because if I’m not mistaken, the last time I able to login was last month or 2 month back and kindly help because I need it badly for working purpose

Email : [personal information removed per the Community's Guidelines] (to login my Dropbox)

Thanks in advance and do appreciate it so much