To fix the issue, please do the following:
1. open the properties.php file in the admin/common properties folder and change the permissions to 0755 for files and directories. It should be around line 20 and 21.
2. update the permissions on the webassist folder to 0755. You can use a free ftp program to do this such as FileZilla. Make sure to include sub files and directories. There is an option for recursive that you will need to check.