Having Trouble staring Appium from CMD

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C:\Users\13024\PycharmProjects\UltraShop_Clean
Encountered internal error running command: Error: Could not sign with default certificate. Original error Command 'C:\Program Files\Java\jdk1.8.0_251\bin\bin\java.exe' not found. Is it installed?
[debug] [W3C]     at ADB.signWithDef

Uninstall your java and re install it once. Make sure env variables are set properly.