Unable to add online accounts in the gnome control centre

Everything was fine until yesterday on my Ubuntu 20.04. But today, as I opened up my laptop and opened my email client, I found that all of my email accounts which were just registered on my PC the previous day, had all gotten unregistered automatically and Ubuntu was asking me to set up all my accounts, which was weird.

I tried logging back in and it successfully took my credentials, but did not add the account to my online accounts list. I do not know why is this happening. I have already rebooted many times but still, I find no accounts on my desktop. It might just have been my stupidity, but I just cannot find the solution anywhere.

Please help. I am still learning a lot and I am still inexperienced.