Problem with "taking screenshot" after pressing button "Refresh"

My appium is running fine, app is getting installed and is launching but when clicking on refresh on inspector its saying unable to connect to server.

Error log

info: [debug] Responding to client with error: {“status”:13,“value”:{“message”:“An unknown server-side error occurred while processing the command. (Original error: Command failed: C:\Windows\system32\cmd.exe /s /c “D:\AndroidSDK\platform-tools\adb.exe -s FA34XS900519 pull /data/local/tmp/screenshot.png “C:\\Users\\Den\\AppData\\Local\\Temp\\appium116611-5424-1co9ora.png””\n)”,“killed”:false,“code”:1,“signal”:null,“cmd”:“C:\Windows\system32\cmd.exe /s /c “D:\AndroidSDK\platform-tools\adb.exe -s FA34XS900519 pull /data/local/tmp/screenshot.png “C:\\Users\\Den\\AppData\\Local\\Temp\\appium116611-5424-1co9ora.png”””,“origValue”:“Command failed: C:\Windows\system32\cmd.exe /s /c “D:\AndroidSDK\platform-tools\adb.exe -s FA34XS900519 pull /data/local/tmp/screenshot.png “C:\\Users\\Den\\AppData\\Local\\Temp\\appium116611-5424-1co9ora.png””\n”},“sessionId”:“c6d34c34-de9d-41be-91af-e6ff01b3ba59”}