after downloading update files when i try to load my saves it says failed to load character/red chair.png
The newest update files are from version 21.10.30 to version 21.11.14 only. If you apply them on version 21.10.10, then you'll be missing every file that was added or changed between 21.10.10 and 21.10.30. (The version number is in year-month-day format).
Either you download the full game version and copy your save files from the old folder to the same location in the new game folder, or you use the MEGA link where I have a folder called "Old update files". You can download the update file for version 21.10.10 to 21.10.30 there, and then apply the newest update files on the 21.10.30 version.
https://mega.nz/folder/CpQXwBDS#wwZlWRrPWoGzZX5h0-MlRQ