There is a possibility that the additional content has not been installed correctly on your PS4 console.
I apologize for the inconvenience, but please try the following steps:
So please check once the download and installation is done on PS4.
■ How to check the download status
1. Press the [Options Button] in [Notifications] on the console startup screen.
2. Select [Download] to check whether the download is complete.
If the [Installed] message is not displayed above, please press the [○ button] to try to download or install.
* If already in progress, please wait for completion.
Also, if you don't see any improvement after trying the methods above, try the methods described below and check if you can redownload.
■ Register the PS4 you've been using
After logging in to PSN, unregister [Always PS4] from [Settings]->[Account Management]->[Register as Always-Used PS4], and then try to register [Always-Used PS4].
■ Repair license
Please select [Repair License] in [Settings] → [Account Management] of the host to check whether the problem is resolved.
■ Redownload content
In order to re-download, you need to have the license of the content (content usage rights), so the method of checking whether there is a license corresponds to [Library] or [Service List]. You can pass content symbols.
・How to view the library
【Home Screen】->【Program Library】->【Purchased Content】
・How to view the service list
[Home]->[Settings]->[Account Management]->[Account Information]->[Service List]
* If there is a content description, please download the content again.
If there is no content description, it is possible that you are using a license for content purchased through another [SEN Account].
If you have multiple users registered on PS4, please check another user's [Library] or [Services List].
Check out the following pages for details.
(Go to Sony Interactive Entertainment website)
https://www.playstation.com/country-selector/index.html
After trying 【License Repair】
If you still can't download, can you try one of the steps below to download?
■ Redownload using the remote download function
If you have an Internet environment on your PC, you can use Remote Download to redownload.
Please see the following page for details.
(Go to Sony Interactive Entertainment website)
https://www.playstation.com/country-selector/index.html
* If you have any questions about the above pages, please contact us.
Please contact operator Sony.
■ Redownload from PS4 PlayStation Store
If the network environment is PS4 and cannot be re-downloaded from the PS4 PS store, please delete the software once and then try to reinstall from the PS store.
* This method takes time as other additional content must be re-downloaded. caution.
* After the download is complete, please restart the game and PS4 console.