Trouble signing in

ceconn.com/say-cheese

I have the correct username and password but still it won’t let me sign in. This site also has the big warning page and I can’t get in order to delete slagglishios plugin which is the culprit.

Any ideas?

The site ahead contains malware
Attackers currently on images.del.icio.us might attempt to install dangerous programs on your computer that steal or delete your information (for example, photos, passwords, messages, and credit cards).

Automatically report details of possible security incidents to Google. Privacy policy
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Google Safe Browsing recently detected malware on https://www.ceconn.com. Websites that are normally safe are sometimes infected with malware. The malicious content comes from images.del.icio.us, a known malware distributor.
If you understand the risks to your security, you may visit this unsafe site before the dangerous programs have been removed.