What computer operating system is involved with your Premiere Elements 13?
Activation problems for the product can be handled only by Adobe. Adobe support on these matters typically go through online using Adobe Chat.
Please click on the following link to contact Adobe Chat about activating your product.
Adobe ID, Signing In
Adobe ID, Sign In, Account Help
If the link does not hold its set, then you will have to navigate to the Chat Panel using the above titles as guides.
Please let us know the outcome.
Also be advised, this is not Adobe. Rather user to user forum. The frequency of the presence Adobe Staff and PRE_help in this forum is not defined.
Please also see
which is probably a duplicate which says that you solved the problem looking and correcting the hosts file.