Julia 1.6.0 packages installation

HELP ME!!!
I deleted the .julia folder.
And now I can’t install anything. Previously, before deleting the .julia folder, in Julia 1.6.0 at least some packages were installed.
I had an experience very similar to JuMP installation issue in Julia v1.6 Domains Optimization (Mathematical) package jump
unfortunately I uninstalled Julia 1.5.4; being installed was that I managed to install some packages in Julia 1.6.0 and others not!

  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.6.0 (2021-03-24)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

(@v1.6) pkg> up
  Installing known registries into `C:\Users\hermesr\.julia`
┌ Warning: could not download https://pkg.julialang.org/registries
└ @ Pkg.Types C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\Types.jl:976
┌ Warning: could not download https://pkg.julialang.org/registries
└ @ Pkg.Types C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\Types.jl:976
     Cloning registry from "https://github.com/JuliaRegistries/General.git"
ERROR: failed to clone from https://github.com/JuliaRegistries/General.git, error: GitError(Code:ERROR, Class:OS, failed to send request: The connection with the server was terminated abnormally
)

(@v1.6) pkg> add Roots
  Installing known registries into `C:\Users\hermesr\.julia`
┌ Warning: could not download https://pkg.julialang.org/registries
└ @ Pkg.Types C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\Types.jl:976
┌ Warning: could not download https://pkg.julialang.org/registries
└ @ Pkg.Types C:\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.6\Pkg\src\Types.jl:976
     Cloning registry from "https://github.com/JuliaRegistries/General.git"
ERROR: failed to clone from https://github.com/JuliaRegistries/General.git, error: GitError(Code:ERROR, Class:OS, failed to send request: The connection with the server was terminated abnormally
)

(@v1.6) pkg>
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