TEENSY 3.1 + ESP8266 -----> "Busy inet..."

Hello everyone !
I commented that I'm sending a HTTP page from the ESP into the browser .
In the Http code I generated an automatic refresh .
The problem I am having is that randomly , when I send the CIPSEND command , he responds with Busy inet .... and it stops automatically refresh due to error.

I attached the code to see if I can help detect what is wrong .Also I attached a picture with the fault.

They can help me?

ESPWEB.ino (8.57 KB)

Help meee :frowning: