Upgrading to a higher BR version is not recommended if you had a very older version (e.g. from R6 to R8.1) - a full new download/install is the better solution.
Tifa seems to cannot find the necessary face type and your game can´t find the maps. Do you have all these Sideloader Modpack folders?
View attachment 1793268
Did you run "update" in Initsettings after you finished the upgrade to R8.1?
This should restore all your Sideloader mods to latest version.
View attachment 1793289
If this doesn´t help I recommend a full new download of BetterRepack R8.1.
If you download direct splitted packs (R8.1 are 14 zip files) from google drive or similar the chance is high to get one corrupted.
If possible try a torrent download (torrent file from here
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or here
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).