Are there content types that you want to add, but they are greyed out??
If this is the case, check your role permissions.
- go to Administration> Site administration> Users> Permissions> Define roles
- click on Provider Administrator (High Level) - note that this may be called TVC Administrator or something similar
- click on Edit
- Find the Filter box
- type in H5P (don't hit 'enter')
- Restrict a H5P library = Allow
- Update the version of an H5P library = Allow
- Save changes
If this doesn't work, please log a ticket.