I need someone to make corrections on my tradingview pinescript

if ShortPosTrue[1] //== true //and sL_S[1] != sL_S[2] //and barstate.islast //

  

    strategy.exit(id = "sL_S", from_entry = 'Kv_Sell', 

      stop = sL_S[1], qty_percent = SLQtyPct, 

      comment ='sL_S=' + str.tostring(SLQtyPct)+'%qt')

    alert_msg = '"KuverBot": "close_Short_N", '

         + '"symbol": "'  + str.tostring(syminfo.ticker) +'", '

         + '"command": "' + str.tostring("sl") +'", '

         + '"tp_qty": "'  + str.tostring(SLQtyPct) +'", '

         + '"side":   "'  + str.tostring("") +'", ' 

         + '"type":    "' + str.tostring("") +'", ' 

         + '"amount": "'  + str.tostring("") +'", ' 

         + '"entry":  "'  + str.tostring(0) +'", ' 

         + '"sl":     "'  + str.tostring(sL_S[1]) +'", '

         + '"tp":     "'  + str.tostring(0) +'"'

    alert_msg := "{" + alert_msg + "}"

    alert(alert_msg, alert.freq_once_per_ this alert needs to get send after every bar closevia webhook to my bot