Servo power with battery, esp restart on moving the servo


Someone having experience in powering an esp32 with servo?
I got a battery charging module (03962A) to connect battery (18650 3.7V).
I later added 0.9V-5V to 5V 600MA USB Charger Step up Power Module Mini DC-DC boost converter - Ben's electronics because it would not work and with this module it does power up the esp and i can move the servo but it than loses power on the board and restarts it. so after few seconds it works again and i can move and it will restart again.

Someone having experience with this and what i should do to fix it?