Customers who purchased the PS4 version of ‘Project Nimbus: CODE MIRAI’ prior to July 29, 2019 (US) or August 14, 2019 (EU) have increasingly reported being unable to use the add-on ‘Project Nimbus: RISE MIRAI’ even after purchasing.
If you are an affected user, please see our page here for more information and a solution:
https://www.gametomo.co.jp/pncm-ps4-voucher
We apologize for the inconvenience!