Office 365 error "Sorry, we are having some temporary server issues"

 Some time ago I helped with resolving an issue with authorization in Office 365 on Windows 8.

Symptoms

• Error "Sorry, we are having some temporary server issues" while trying to authorize in any Office 365 apps (Word, Excel, etc.).
• Error #455 in the Application Event Viewer "taskhostex(10032) WebCacheLocal: Error - 1032 (0xfffffbf8) while opening log file "C:\...\AppData\Local\Microsoft\Windows\WebCache\V01.log".
• Internet Explorer does not load any website.
• Services window is blank.

Is it possible store VeraCrypt encrypted container on Google Drive and Microsoft OneDrive?

Cloud drive is a best and simple way to protect the data from loss (second copy).

VeraCrypt (as TrueCrypt fork) is a good tool to protect the data from leake (encryption).

It is reasonable to use these technologies together. But this solution has several specifics:

• Encrypted container (VeraCrypt volume) is a single file that can be large. How its changes will upload to the cloud?
• Encrypted container does not change the size. How cloud tools notice a file change?
• How many data VeraCrypt changes during on-the-fly encryption (OTFE)?