Help pleaseee

Hello everyone, please i need your help asap!!

My macbook pro mid 2012 was running for a couple of months fine with bigsur, and recently i was getting after i turn on my laptop open core legacy update, but i didn't update it so it won't lead to some problems, and yesterday when i tried to turn on my laptop after i give my password and press login it freeze on loading bar, i tried so many so many solutions none of them works for me,

And when i try to turn it on using verbose mode i get this, and it freeze as you see in the picture,

Please i need your help guys, i have files and works to be done.

I tried the solutions, reset nvram ... , replug ssd ...