the errors reported in the error log are a result of errors in coding the page.
For example, the css file at:
is pointing to image files that do not exist:
points to the following location which gives a 404 page not found error:
there are a few other images in the css giving 404 errors as well.
this script file:
has incorrect references to images files too.
also in the index page, there is the following image tag:
<img alt="" src="/tree2/icons/" />
trying to resolve to:
this is giving the 403 error.