php errors.Please help.

I was running my filehosting website.From yesterday it got down.I asked the hosting.They said that they are moving to a new server.
Its over 24hrs and now my website is giving a white screen.Now when I go to a file download it gives errors.
errors : Deprecated: Assigning the return value of new by reference is deprecated in /home2/megafile/public_html/system/codeigniter/Common.php on line 130
Deprecated: Assigning the return value of new by reference is deprecated in /home2/megafile/public_html/system/codeigniter/Common.php on line 136
A PHP Error was encountered
Severity: 8192
Message: Function set_magic_quotes_runtime() is deprecated
Filename: codeigniter/CodeIgniter.php
Line Number: 119
The URI you submitted has disallowed characters.
File Download link:
http://megafileshares.com/index.php/files/get/o8DYmGQ1Oo/video.flv
Please help me.
Answer #1
I’m not sure, but it’s possible that the files (images, video, audio, ecc) in your web page didn’t be transfered to the new server yet, so now it can’t find many of the object of the code. I suggest to contact the hosting and try to ask something about it.
Answer #2
The first problem was codeigniter.So I have updated it.Now its php error.The mysql is enabled in php5 by default.
I am on a shared hosting.How can I enable it?