This article will explain why you might not be able to see and carry out certain actions for records even though you have an Admin Account.
The biggest possibility is due to lack of Access Control on your account. In which case, you will have to contact the system administrator to check your access.
If you have access, please refer to this article to edit your access - Access Control
After you have edited and you still do not have access to the required screen/action; contact System Support as this could be due to a system bug.