We are running to endless run to resolve seemingly easy to reproduce Salesforce internal error. Apparently, success.salesforc.com, clearly do not support any developer question - "Developer support for standard customers and partners is supported directly through our community. If you have a developer support question, please visit our  Developer Forum."

Problem Description:
1) Go to Packages
2) Try to open CapacityBuilding
3) When I am clicking on CapacityBuilding at that time error occur:
An internal server error has occurred
An error has occurred while processing your request. The salesforce.com support team has been notified of the problem. If you believe you have additional information that may be of help in reproducing or correcting the error, please contact Salesforce Support. Please indicate the URL of the page you were requesting, any error id shown on this page as well as any other related information. We apologize for the inconvenience. 

Thank you again for your patience and assistance. And thanks for using salesforce.com! 

Error ID: 1399653461-180237 (1910618002)

4) We don't have any backup plan any more as there is no option to even delete "manage" package.





 

I am trying to configure guest user account permission for "Standard" and "Custom" objects.  However, as shown in a screen below all the objects do not have access. 
https://www.dropbox.com/s/pbgd0qdzurs67o6/Screenshot%202014-12-29%2015.03.38.png?dl=0

When I click on the each object (Account, Lead or Product) and go to individual object access as seen below, I cannot add "Read" access as everything is disabled.
https://www.dropbox.com/s/zqtkk503dpbjif3/Screenshot%202014-12-29%2015.06.10.png?dl=0


 

I just got a standard developer force.com license. However, I do not see any way to create force.com site from my instance. Here is a screenshot of when I search for site in my Salesforce instance: Do not see any access to Force.com site in my developer instance.
https://www.dropbox.com/s/so5qv9pmg9kulra/Screenshot%202014-12-29%2011.53.11.png?dl=0

Apparently, when we login to our non-profit instance, we can create new site. Please let me know what do I need to do create site?

I am trying to configure guest user account permission for "Standard" and "Custom" objects.  However, as shown in a screen below all the objects do not have access. 
https://www.dropbox.com/s/pbgd0qdzurs67o6/Screenshot%202014-12-29%2015.03.38.png?dl=0

When I click on the each object (Account, Lead or Product) and go to individual object access as seen below, I cannot add "Read" access as everything is disabled.
https://www.dropbox.com/s/zqtkk503dpbjif3/Screenshot%202014-12-29%2015.06.10.png?dl=0


 

I just got a standard developer force.com license. However, I do not see any way to create force.com site from my instance. Here is a screenshot of when I search for site in my Salesforce instance: Do not see any access to Force.com site in my developer instance.
https://www.dropbox.com/s/so5qv9pmg9kulra/Screenshot%202014-12-29%2011.53.11.png?dl=0

Apparently, when we login to our non-profit instance, we can create new site. Please let me know what do I need to do create site?