PHP 5.5 introduced a function called imagescale -- Ad Peeps also had
same function name which presented conflict. We renamed our function
If you are getting this error, it means you are using a version of Ad
Peeps lower than 9.1.14a since we patched this version and higher.
We always recommend customers stay up with updates because we not
only add enhancements but we keep up with what PHP is doing to keep
our software fully compatible.