Cant access Plugs..

Hi, just went to my sites plug page to install a new gallery plugin and I get this message..
An unexpected error occurred. Something may be wrong with www.remarpro.com or this server’s configuration. If you continue to have problems, please try the support forums.

I have read in a few threads its a virus, malware or some such.. Can some please scan my site, let me know if thats the case and how to resolve it?
https://www.timelessweddingimages.com.au

Regards
Terry