Can't open any project

Just why?

6 out of 6 checks passed:
[
{
"name": "UPM registry reachable",
"description": "Make an HTTP request to the UPM package registry",
"result": "PASS",
"detail": "HTTP/1.1 200 OK\nX-Powered-By: Express\nProvider: Genesis\nDate: Sat, 14 Mar 2020 23:01:31 GMT\nConnection: close"
},
{
"name": "Ping UPM registry",
"description": "Measure the latency of the UPM package registry API",
"result": "PASS",
"detail": "10 pings made in 5.038 seconds\nAverage latency: 73.61 ms\nMinimum latency: 62.07 ms\nMaximum latency: 157.25 ms\nStandard deviation: 29.49"
},
{
"name": "Ping UPM download",
"description": "Measure the latency of the UPM package download endpoint",
"result": "PASS",
"detail": "7 pings made in 5.287 seconds\nAverage latency: 22.17 ms\nMinimum latency: 20.12 ms\nMaximum latency: 31.60 ms\nStandard deviation: 4.18"
},
{
"name": "UPM registry download speed",
"description": "Test the Internet connection using the UPM package registry",
"result": "PASS",
"detail": "Measured speed to the UPM registry: 15.73 Megabits per second"
},
{
"name": "Speedtest.net",
"description": "Test the Internet connection using Speedtest.net",
"result": "PASS",
"detail": "Measured speed to the Speedtest.net server: 16.73 Megabits per second"
},
{
"name": "HTTP proxy environment variables",
"description": "Detect whether proxy-related environment variables are set (HTTP_PROXY, HTTPS_PROXY, ALL_PROXY, NO_PROXY, UNITY_PROXYSERVER, UNITY_NOPROXY)",
"result": "PASS",
"detail": "No proxy support has been configured through environment variables."
}
]

 

I believe you post the least relevant information for the problem.

What happens when you try to open a project, is there any error message?
Does it happen with a new blank project as well?

Check the log files:
https://docs.unity3d.com/Manual/LogFiles.html

 

When I open a project in unity hub it crashes and shows the message "unity is already in list. you cannot locate the same version" and when I try to open a scene directly from the file it shows the package manager error even though everything works

And it also happens when I create a new project.

 

I reinstalled Unity, Unity hub. I reactivated the license. NOTHING WORKS! I'm running out of patience especially because no one answers me!

Editor.log:
[LicensingClient] ERROR Failed to connect to local IPC
[Licensing::Module] Failed to connect to channel: LicenseClient-Luan
[Licensing::Module] Successfully launched the LicensingClient
[LicensingClient] Timed-out attempting to connect to the Licensing Client on pipe: LicenseClient-Luan.
[LicensingClient] ERROR Failed to connect to local IPC
[Licensing::Module] Failed to connect to channel: LicenseClient-Luan
IPC channel to LicensingClient doesn't exist; falling back to Legacy licensing
[LicensingClient] ERROR Failed to disconnect local IPC connection

LICENSE SYSTEM [2020315 20:31:3] Next license update check is after 2020-03-17T02:28:46

Built from '2019.3/staging' branch; Version is '2019.3.5f1 (d691e07d38ef) revision 14062048'; Using compiler version '191627012'
OS: 'Windows 10 (10.0.0) 64bit' Language: 'es' Physical Memory: 3954 MB
BatchMode: 0, IsHumanControllingUs: 1, StartBugReporterOnCrash: 1, Is64bit: 1, IsPro: 0
No valid Unity Editor license found. Please activate your license.
[Package Manager] Server::Start -- Port 60703 was selected

COMMAND LINE ARGUMENTS:
C:\Program Files\Unity\Editor\Unity.exe
-projectpath
C:/Users/Luan/Desktop/Test
-useHub
-hubIPC
-cloudEnvironment
production
-hubSessionId
a225b1b0-672d-11ea-aadb-7b4370714c1d
-accessToken
_ZRWS8BKtYxRr3QQpsKBPwOrjkkUacoN8hKeR4n0A7s004f
Exiting without the bug reporter. Application will terminate with return code 0

upm.log:
[2020-03-16T02:31:29.438Z][INFO] Starting Server
[2020-03-16T02:31:29.517Z][INFO] Server started on port [60703]
[2020-03-16T02:31:30.600Z][ERROR] [Unity Package Manager (Upm)]
Parent process [6516] was terminated