Avast blocks email log-in page and subsites while logged in

Hi!
After latest update to ver. 2015.10.2.2214, I have a problem with an email log-in page: http://poczta.wp.pl/.
After going to the site I get the following string of signs:
“X-spaces: ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Content-type: text/html
Content-Length: 0
Connection: close”

When I deactivate Web Shield in Avast the page displays properly. When I manually add “s” to “http” in the address, the page displays properly as well.

And when logged in and with Web Shield on, I get also some strange string of signs when, for expample, trying to open attachments:
“X-spaces: ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Location: /d636/0/d636/list.html?tsn=1426800308749&zalf=Nowe&wid=1145&p=1.1&o2=1017&t=TEXT&ct=UVVPVEVELVBSSU5UQUJMRQ%3D%3D&cs=dXRmLTg%3D&s=1 Content-type: text/html Connection: keep-alive Transfer-Encoding: chunked 0”

Anyone having the same issue?
I would appreciate any help on this.

Thanks.

The web site http://poczta.wp.pl/ works for me. (but then I’m not using Avast2015)

Have you tried this login page: Logowanie for now?

Latest avast, all shields active and the site is working for me.