C:\_Programowanie\Java\ExpressJS\node_modules\mysql\lib\protocol\Parser.js:437
      throw err; // Rethrow non-MySQL errors
      ^

TypeError: res.sendStatus is not a function
    at Query.<anonymous> (C:\_Programowanie\Java\ExpressJS\routes\addEmployee.js:30:13)
    at Query.<anonymous> (C:\_Programowanie\Java\ExpressJS\node_modules\mysql\lib\Connection.js:526:10)
    at Query._callback (C:\_Programowanie\Java\ExpressJS\node_modules\mysql\lib\Connection.js:488:16)
    at Query.Sequence.end (C:\_Programowanie\Java\ExpressJS\node_modules\mysql\lib\protocol\sequences\Sequence.js:83:24)
    at Query._handleFinalResultPacket (C:\_Programowanie\Java\ExpressJS\node_modules\mysql\lib\protocol\sequences\Query.js:149:8)
    at Query.OkPacket (C:\_Programowanie\Java\ExpressJS\node_modules\mysql\lib\protocol\sequences\Query.js:74:10)
    at Protocol._parsePacket (C:\_Programowanie\Java\ExpressJS\node_modules\mysql\lib\protocol\Protocol.js:291:23)
    at Parser._parsePacket (C:\_Programowanie\Java\ExpressJS\node_modules\mysql\lib\protocol\Parser.js:433:10)
    at Parser.write (C:\_Programowanie\Java\ExpressJS\node_modules\mysql\lib\protocol\Parser.js:43:10)
    at Protocol.write (C:\_Programowanie\Java\ExpressJS\node_modules\mysql\lib\protocol\Protocol.js:38:16)
[nodemon] app crashed - waiting for file changes before starting...