Im having some problems with my esc. when i move my stick up, it beeps and then it just stops. forward and backward. what does this beep mean?

LiPo: https://www.amazon.com/Gens-ace-Batt...s=5000mah+lipo

Motors: https://hobbyking.com/en_us/turnigy-...-approved.html

ESC: https://hobbyking.com/en_us/hobbykin...1-10-1-12.html