I can't remove the account link

I want to remove the Steam connection from my account, but it won't come off. Thinking, “Is the problem only with Steam?”, I tried to remove the other connections from my account, but the result was the same with them too; that is, not only Steam, but also the Twitch and Amazon connections linked to my account won't come off. In short, none of the linked accounts on my account can be removed. 

When I go to the “Connected accounts” section and click ‘unlink’ for any connection, a screen pops up with warnings like “Read our help article to understand the risks associated with unlinking your account,” etc., explaining what might happen if I remove the account connection, and it asks me to confirm by clicking "
I understand and wish to continue." When I click “I understand and wish to continue” and select “Unlink,” the window closes, but the link still doesn't disappear; it remains exactly where it was. I've tried this multiple times, but it doesn't work. No error message or any text appears. The window just closes, and the links stay as they are; they don't disappear. Is there anyone who can help?