Cannot assign permissions to reseller

Hello,
This is a really weird problem which I have come across for the first time. I had a account swapped over from a old provider to the new one. During the restoration, I had this error:

Code:

[a fatal error or timeout occurred while processing this directive]
Attempt to free unreferenced scalar.

I had to manually get the account restored due to this error. It use to fill up the whole WHM restoration page. (This error occurred while it was in the step of restoring reseller privileges as it was a reseller in the previous server)

ok, lately, I tried to make this a reseller, i was sucessful enough, although when i try to give permissions to this account, i get the error again:

Code:

[a fatal error or timeout occurred while processing this directive]
Attempt to free unreferenced scalar.

Some of the basic reseller permissions that are provided to the user while making it a reseller are the only permissions it can have. I cannot give the account any more permissions which are reseller related. Don't have a clue why.

Please let me know what am i suppose to do in order to solve the error.

- I am on a dedicated server.
- All other accounts can become a reseller with the permissions which i can alot without any problems.

UPDATE:
- I have tried restoring different accounts from different webhosts and all give out the same error. I think there is some fault within WHM which is causing the issue. Please help me out ASAP.