Error running a 'Digital-Copy' game

Hello, firstly many thanks to the makers of this great software. Much appreciated.
Secondly, I am pretty sure everything I am trying to do is legal and legit, but please remove the thread if deemed otherwise.

So my story is, I am sick of having PS3 consoles that fail, which is why I looked into emulation using a fairly new Windows 11 PC. I have many games on Blu-Ray discs, but at the moment I am focusing on transferring my 'Digital-Copy' games from my PS3 to my PC. All legally purchased through the online store and downloaded using my PS3 console. I have been following this guide:
https://wiki.rpcs3.net/index.php?title=H..._PSN_games

I have so far accomplished the following:
- Installed HEN
- Installed MultiMAN
- Installed RPCS3 on my Windows PC. Installed the latest PS3 firmware into RPCS3.
- Copied all game files from /dev_hdd0/game/ (on console) to my PC
- Used PS3merge to rejoin files that were over 4GB
- Copied all game files to the same path within the RPCS3 folder (on PC). From what I understand, I don't need .pkg files in this scenario.
- Copied all of the relevant .rif files from the console to my PC
- The act.dat file was not on my PS3, so I used Apollo Save Tool to do an Account Activation. Not sure if this was the correct solution, but it created an act.dat file, which I then copied to my PC
- Found the IDPS of my console through MultiMAN, made a note of it.
- Converted the IDPS to hex. I am not 100% that I did this correctly. Wasn't sure what happens with the hyphen characters within the string. However, I then used RifConv to successfully create a bunch of .rap files
- Copied all the rap files to \dev_hdd0\home\00000001\exdata\  in the RPCS3 installation on my PC

When running RPCS3, I was happy to find that all my games appear in the main list. However, when I try to run a game, I get the following error (same error for all games):

   

Can't figure out what I have done wrong, so any help would be greatly appreciated!