Stuck on connected to wifi

what do you mean by removing # from first line of sketch. I am sorry i am new

Sorry not #.
Remove // from start of first line.

it gives me the following output:

[19] 
    ___  __          __
   / _ )/ /_ _____  / /__
  / _  / / // / _ \/  '_/
 /____/_/\_, /_//_/_/\_\
        /___/ v0.5.0 on Arduino Uno

[603] Connecting to bash
[3820] AT version:1.5.0.0(Oct 24 2017 12:03:18)
SDK version:2.1.0(ace2d95)
compile time:Oct 24 2017 15:48:02
Bin version(Wroom 02):1.5.1
OK
[11124] +CIFSR:STAIP,"172.20.10.2"
+CIFSR:STAMAC,"2c:3a:e8:36:66:f9"
[11131] Connected to WiFi
[23032] <[02|00|01|00] 602153faf1ba414f9a86c9cf0069d389
[34916] <[02|00|01|00] 602153faf1ba414f9a86c9cf0069d389
[47312] <[02|00|01|00] 602153faf1ba414f9a86c9cf0069d389
[58885] <[02|00|01|00] 602153faf1ba414f9a86c9cf0069d389
[70205] <[02|00|01|00] 602153faf1ba414f9a86c9cf0069d389
[81739] <[02|00|01|00] 602153faf1ba414f9a86c9cf0069d389
[92823] <[02|00|01|00] 602153faf1ba414f9a86c9cf0069d389
[103865] <[02|00|01|00] 602153faf1ba414f9a86c9cf0069d389
[115045] <[02|00|01|00] 602153faf1ba414f9a86c9cf0069d389

and i checked my phone app and noticed that the app goes online for a second and offline again

Suggests a bad token or you are send the token to the wrong server.

Get yourself a new token from the app and flash the sketch again.

Don’t post your tokens on this forum though.

refreshed the token and still same problem.
But since the app shows online for a second it means that the board is connecting to the server…right?

Ok try keeping Serial Monitor closed.