Avast wont stop showing the warning message about Gmail being infected

I use more than one Gmail account but one of them is causing Avast to give me a warning window that I cannot remove. I check passwords saved on chrome and one of my emails (not a gmail ) was compromised. Chrome flagged the email with awarning.

I deleted Chrome and logged to that email using firefox. I got the same warning from Avast. I reinstalled Chrome and ran the virus cleaner but chrome did not find anything. I think there is something wrong. How did my email password get compromised?

here is the warning from Avast

Threat secured
we have safely aborted connection on mail.gmail.com becaue it was infected with html:phishingSxt-P [Phish]

n the details section I threat name: html:phishingSxt-P [Phish]
url https://mail.google.com/sync/u/2/i/fd?hl=en&c=66\Process c:\Program\Google\Chrome\Application\chrome.exe
detected by Web Shield
Status Connection aborted

Please help.

Avast Hack-Check: https://www.avast.com/hackcheck