Why am I getting a registration error popup every time I try to login to my Tumblr on my Chromebook?

I have had a Tumblr for a while now, but am unable to login on my Chromebook. I enter my email, but then get a popup saying "Registration Error." Its

I have had a Tumblr for a while now, but am unable to login on my Chromebook. I enter my email, but then get a popup saying "Registration Error." It's been like this for a month or so. Also, I can sign in normally on Incognito mode, and have my account fully activated.

or:I have had a Tumblr for a while now, but am unable to login on my Chromebook. I enter my email, but then get a popup saying \"Registration Error.\" It's been like this for a month or so. Also, I can sign in normally on Incognito mode, and have my account fully activated.

or:There's so many questions to check out. Is this problem remains after you cleanup the caches and cookies in your browser (Clear Browsing data option in top menu)? Any chance for app reinstall? Obvious options to change the password to the account and try whole login from the scratch.

Tags:error,