Trouble with Encrypting a PS2 game for PS3 (PS2 Classics) - PS2Classics_GUI

[Pzyke]

[PS2]/Burnout Dominator/Burnout Dominator.iso ISO.BIN.ENC ISO.BIN.ENC 2P0001-PS2U10000_00-00001111222233331 [main] ps2classic 104388 find_fast_cwd: WARNING: Couldn't compute FAST_CWD pointer.
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Error: invalid number of arguments for encryption

I used Img Burn to rip from the disc,
I tried a variation of speeds (several times),
The Reading process seems to be fine,
I get the ISO file but i'm not sure if there's something wrong with it..
Is there something wrong with the naming convention that I've used?

My issue is when I try to Encrypt the ISO file, it doesn't encrypt it, a pop-up just appears with a 'Finished' message and the Error message I copy/pasted above keeps showing up in the bottom section of PS2Classics_GUI

 

[Pzyke]

Quick update;
So i was using version 2.1 of ps2classics GUI
I just downloaded version 2.2.3 and encryption seems to be working now
(after trying for a couple of hours =_=")

So in conclusion,
Problem solved!

Sorry for posting, I didn't think I'd find my answer right after I gave up lol
I hope this might at least help someone else who runs into the same issue
(Feel free to remove this thread though)