ps1 games compatibility on ps3?

I have a problem that I've faced recently. I could play ps1 games on ps3 multiman, but I recently updated the whole software, and now all of a sudden, when I run ps1 games, the screen goes black, and the console freeze. the question is there a problem with the latest version of multiman or rebug with ps1 games.
multiman v 4.85.01
rebug 4.86.1 LE

!2021-03-23T22:54:57Z

Because the multiman software relies on jailbreaking the PS3 to get it to play PS1 games, if you update the firmware, it will patch the jailbreak and stop it from working. You'll have to revert to your previous configuration and not update again.