For the first error try to find more information about it.
Look in the log, try to find from which descriptor is coming the error, try to see if some of the values in the method call for some reason is not set.
The ACL error is ISS error not Mega.
403 is permission denied which basically means that the ISS server doesn't have the right permissions set.
The purpose of the dynamic websites is to avoid the generation of static files and make possible the display of the updated of data on the web site when it's changed both with thin and thick clients.
In other words, you cannot proceed with this manner to generate your Advisor web site. So, to fix that problem, you will need to apply the following actions:
1- Make sure that the user you are connecting with has both Advisor and Publisher (web) products.
2- Make sure on the user options you have an "expert" level on the MetaModel and authorized to change MEGA data
3- Make sure the user you are connecting with has the highest confidentiality level.
Once these conditions are fulfilled: