Hi,
I would check a few things...
1) Does vcl260.bpl exists in that folder?
2) Does it have a "valid size". If it is "zero" then you need to reinstall and may be your antivirus is getting in the way. Disable realtime protection and reinstall.
3) Your path might be corrupted (Not enough space for ex).
4) Somehow the 64bit version of the bpl is being loaded, and fails for obvious reasons.
HTH,
Clément