Can anyone help me?

[Sr.Jonny]

Can anyone help me? I don't know why, but my progress in the game disappeared, I still have the achievements. I don't know what to do

[Drunken Duck]

try going to stats -> secrets page, sometimes steam does the funny. happened to me once, going to that page makes it re-check your progress, giving everything back.

if not, then search up guides on using your local backup files in the game's folder. i don't remember the exact actions, but it's possible to do so

[Drunken Duck]

stats, not status. in the menu you have:
new run
continue
challenges
mods
*stats*
options
going to stats or maybe to stats and then to secrets (secrets is what this game calls achievements) makes the game check which onces you have, as i mentioned

[Sr.Jonny]

unfortunately it didn't work

[Drunken Duck]

then try going to the game's folder (C:\Users\[username]\Documents\My Games\Binding of Isaac Repentance). the game has backup saves there.
the current saves are called persistentgamedata[slot number].dat
remove the current onces and rename the ones with the date (being the date and time of this backup) to remove the first part (date_rep. or sth like that) and to only have the persistentgamedata[number].dat part. i think you need to rename all 3 slots for this to work properly
if i didn't explain it clearly, try searching this method in other places. i've never done this, but that's how it is supposed to work when you need to load backup saves.
hope this helps!

[Drunken Duck]

if this as well doesn't help, then try installing repentogon mod (not from steam workshop, from github or its website), i've heard you can get achievements with commands using it. although you will have to do it manually by remembering which ones you had :(

[fly_6]

Restart steam

[_37zak_]

whilst on the stats screen, i you press Alt + F2 it should sync your unlock with your steam achievements