Fatal error: pgadmin server could not be contacted

I have been trying to open postgresql but everytime fatal error window
comes up on pgadmin. I tried many online solutions,even changed the port
number, none of them worked. Uninstalled and reinstalled the whole but the
server can't be connected.
The fatal error window shows the following:

pgAdmin Runtime Environment
--------------------------------------------------------
Python Path: "C:\Program Files\pgAdmin 4\v7\python\python.exe"
Runtime Config File:
"C:\Users\hp\AppData\Roaming\pgadmin\runtime_config.json"
pgAdmin Config File: "C:\Program Files\pgAdmin 4\v7\web\config.py"
Webapp Path: "C:\Program Files\pgAdmin 4\v7\web\pgAdmin4.py"
pgAdmin Command: "C:\Program Files\pgAdmin 4\v7\python\python.exe -s
C:\Program Files\pgAdmin 4\v7\web\pgAdmin4.py"
Environment:
- ALLUSERSPROFILE: C:\ProgramData
- APPDATA: C:\Users\hp\AppData\Roaming
- asl.log: Destination=file
- CHROME_CRASHPAD_PIPE_NAME: \\.\pipe\crashpad_11968_TFZMTKJGHSZRDQEE
- CHROME_RESTART: NW.js|Whoa! NW.js has crashed. Relaunch
now?|LEFT_TO_RIGHT
- CommonProgramFiles: C:\Program Files\Common Files
- CommonProgramFiles(x86): C:\Program Files (x86)\Common Files
- CommonProgramW6432: C:\Program Files\Common Files
- COMPUTERNAME: LAPTOP-JSDALHDL
- ComSpec: C:\WINDOWS\system32\cmd.exe
- DriverData: C:\Windows\System32\Drivers\DriverData
- GOOGLE_API_KEY: no
- GOOGLE_DEFAULT_CLIENT_ID: no
- GOOGLE_DEFAULT_CLIENT_SECRET: no
- HOMEDRIVE: C:
- HOMEPATH: \Users\hp
- LOCALAPPDATA: C:\Users\hp\AppData\Local
- LOGONSERVER: \\LAPTOP-JSDALHDL
- NUMBER_OF_PROCESSORS: 4
- OneDrive: C:\Users\hp\OneDrive
- OnlineServices: Online Services
- OPENSSL_CONF: C:\Program Files\PostgreSQL\psqlODBC\etc\openssl.cnf
- OS: Windows_NT
- Path: C:\Program Files\pgAdmin
4\v7\runtime;C:\ProgramData\Oracle\Java\javapath;C:\Program Files
(x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS
Client\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program
Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program
Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files
(x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program
Files\Intel\Intel(R) Management Engine
Components\IPT;C:\WINDOWS\System32\OpenSSH\;C:\Program
Files\dotnet\;C:\Program
Files\nodejs\;C:\Users\hp\AppData\Local\Programs\Python\Python39\Scripts\;C:\Users\hp\AppData\Local\Programs\Python\Python39\;C:\Users\hp\AppData\Local\Microsoft\WindowsApps;C:\Users\hp\AppData\Local\Programs\Microsoft
VS Code\bin;C:\Users\hp\AppData\Roaming\npm
- PATHEXT: .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
- PGADMIN_INT_KEY: 6def04f2-8187-44a2-8d56-53ac2f3de6e0
- PGADMIN_INT_PORT: 5433
- PGADMIN_SERVER_MODE: OFF
- platformcode: KV
- PROCESSOR_ARCHITECTURE: AMD64
- PROCESSOR_IDENTIFIER: Intel64 Family 6 Model 78 Stepping 3, GenuineIntel
- PROCESSOR_LEVEL: 6
- PROCESSOR_REVISION: 4e03
- ProgramData: C:\ProgramData
- ProgramFiles: C:\Program Files
- ProgramFiles(x86): C:\Program Files (x86)
- ProgramW6432: C:\Program Files
- PSModulePath: C:\Program
Files\WindowsPowerShell\Modules;C:\WINDOWS\system32\WindowsPowerShell\v1.0\Modules
- PUBLIC: C:\Users\Public
- RegionCode: APJ
- SystemDrive: C:
- SystemRoot: C:\WINDOWS
- TEMP: C:\Users\hp\AppData\Local\Temp
- TMP: C:\Users\hp\AppData\Local\Temp
- USERDOMAIN: LAPTOP-JSDALHDL
- USERDOMAIN_ROAMINGPROFILE: LAPTOP-JSDALHDL
- USERNAME: hp
- USERPROFILE: C:\Users\hp
- windir: C:\WINDOWS
--------------------------------------------------------

Total spawn time to start the pgAdmin4 server: 0.493 Sec

Help me out with this.