error 80028f14 after p3go upgrades

Before running an upgrade of my PS3 dongle P3GO, I can play most of my game in internal hdd0 but now I keep getting 80028f14 error on /app_home/PS3_GAME after selecting the same games from Gaia1.05 or OM2.1.
I have tried booting up with or without the TF card.
Any idea why?
Btw, I'm running the latest update from P3GO, which I notice the firmware version change to 3.66, is that for real?
How do I know what payload I'm using now?
Anybody know if I can downgrade the P3GO back to the previous version?

Delete update directories, transfer files into the original sfo, sfo with OM2.1H changes, you can run ~

thanks for the reply but i might not do it right. where exactly all this info stored?
Do I need to go to LAUN12345/GAMEZ folder and into a specific game folder and find PS3_Update folder and sfo file?
I have done that and still the same.
I have also tried to delete and reinstall OM2.1 and tried the older OM1.17, I keep getting 80028f14 error on /app_home/PS3_GAME after selecting the game.

I also did update and have same error... When trying to run a backup of any of my games with or without out game disc...
I used usbrar from dongle site to downgrade in case of bad update still problem exist.. But YES you can downgrade however I'm unsure of risk.. And CHT on a fat system does not seem to be working drove me nutts trying :crazy:...... But riven4300 seems to be rocking it on his slim so let us hope for a fix..........AND BETTER CHEATS

can you try to start game with multiman?

I get the same message as you, some games doesn't show up and it seems the Codemanager isn't working either.
I used Multiman (Games doesn't show up) Open Manager (same thing) Rogero (games shows up but asks for a disc to play)