Hello Vlad,
I am happy to help you resolve your issues.
Kindly try the following suggestion
Open Word >> click Options >> Click Advanced >> Locate the Save section >> Select the Copy remotely stored files onto your computer checkbox >>Click OK and exit.
Further, You can also try the suggestions in the video below.
https://www.youtube.com/watch?time_continue=2&v=g3kzbvGtPY4&feature=emb_logo
'Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.'
Let me know if you have other questions.
Regards,
Yusuf