*HELP* [Failed to load save data, Save data is corrupted] "pc"

So for context i play Elden Ring completely legit, no mods and bought from steam . basically i have recently bought Shadow of the erdtree a couple of days ago and it was going fine . but one day my internet cut out and the game kicked me to the main menu because i was offline (i got kicked out outside the boss arena for Divine Beast Dancing Lion) . but then i still decided to keep playing offline, after some time i logged off and decided to quit the game (I chose exit to desktop) .when i logged it the next day it said this message "Failed to load save data, Save data is corrupted" . So i scour to find a fix but most of the things i found had to with mods or a crack Elden ring, there were videos but they were 2 years old and doesn't have the same message . i would preferably wanna do it completely vanilla with no mods . but if i have to use mods what's the easiest way to do it . i would really appreciate the help cause i wanna play the dlc