R has problems with cloud-synced folders and non-ASCII characters in the package library path. I recommend you to set your package library in a non synced folder and using ASCII characters.
You can change the default library folder by setting your R_LIBS_SITE environmental variable in a .Reviron or .Rprofile file. For example:
# In a .Renviron file you can set it by adding a line like this one with the desired location
R_LIBS_SITE="C:\\Program Files\\R\\R-4.1.2\\library"
For a more detailed explanation, you can read this blog post