Util.php ERROR

[CherylOnlineUk]

hi, my gallery is http://kimberleywalsh.co.uk/gallery

i am trying to update my resized pictures, through admin tools, but every time i try i keep getting the error message
that i have attached.

i have looked everywhere for a solution, i've checked the coding, the error log and i can't seem to find the problem.

if anyone knows how to fix this i will be so grateful

Thanks

[Αndré]

Please try again with the curve theme: http://kimberleywalsh.co.uk/gallery/util.php?theme=curve

[CherylOnlineUk]

no that still doesn't seem to work

[Αndré]

In your screenshot you used that url: http://www.kimberleywalsh.co.uk/gallery/
Maybe it works with the following url? http://kimberleywalsh.co.uk/gallery/