This is a little of the error logs

 

[Thu Nov 08 13:48:14 2012] [error] [client 186.46.187.43] File does not exist: /home/sites/dadpeter.co.uk/public_html/http:, referer: http://dadpeter.co.uk/500.phtml
[Thu Nov 08 13:48:20 2012] [error] [client 78.144.158.9] File does not exist: /home/sites/dadpeter.co.uk/public_html/ow_static/themes/mydiary/images/divider2.png), url(images, referer: http://dadpeter.co.uk/
[Thu Nov 08 13:48:21 2012] [error] [client 78.144.158.9] File does not exist: /home/sites/dadpeter.co.uk/public_html/ow_static/themes/mydiary/images/divider.png), url(images, referer: http://dadpeter.co.uk/
[Thu Nov 08 13:48:22 2012] [error] [client 221.6.15.156] File does not exist: /home/sites/dadpeter.co.uk/public_html/http:, referer: http://dadpeter.co.uk/500.phtml
[Thu Nov 08 13:48:30 2012] [error] [client 58.248.217.195] File does not exist: /home/sites/dadpeter.co.uk/public_html/http:, referer: http://dadpeter.co.uk/500.phtml
[Thu Nov 08 13:48:30 2012] [error] [client 78.144.158.9] File does not exist: /home/sites/dadpeter.co.uk/public_html/ow_static/themes/mydiary/images/divider.png), url(images, referer: http://dadpeter.co.uk/forum
[Thu Nov 08 13:48:38 2012] [error] [client 124.160.147.173] File does not exist: /home/sites/dadpeter.co.uk/public_html/http:, referer: http://dadpeter.co.uk/500.phtml

The images or present on server so i cant understand

I have changed theme but still i keep getting these errors

Did you recently enabled any plugins?

I updated yours in admin ,but i removed it and some othere plugins .Now i am getting just 500 error,it should not keep doing this ,this script

Peter, missing static files in themes could not have caused 500 error.  Seems like there is a .php error somewhere. You will need to turn DEBUG_MODE on and work on your site for a couple of days and see the error gets caught.

I did a reinstall ,its fine now thanks.