Brownout detector bootloop (Heltec Wifi Kit 32 board)

I'm trying to use Espruino on the ESP32 Heltec WiFI Kit 32 Board. But after flashing the board, the board keeps restarting, saying brownout detector was triggered.
Usually when I plug the board in the console would show up and work, but after a few seconds, the brownout detector would get triggered and start boot looping.

Here is a snippet of the serial console output:

E (551) spiram: SPI RAM enabled but initialization failed. Bailing out.
WARNING: check error not implemented yet:0


 ____                 _ 
|  __|___ ___ ___ _ _|_|___ ___ 
|  __|_ -| . |  _| | | |   | . |
|____|___|  _|_| |___|_|_|_|___|
         |_| espruino.com
 2v10 (c) 2021 G.Williams

Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate

>console.log("hello") 
hello
=undefined
>2+2
=4
>       
Brownout detector was triggered

ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:2668
load:0x40078000,len:7304
load:0x40080000,len:5312
entry 0x40080274
E (551) spiram: SPI RAM enabled but initialization failed. Bailing out.
WARNING: check error not implemented yet:0


 ____                 _ 
|  __|___ ___ ___ _ _|_|___ ___ 
|  __|_ -| . |  _| | | |   | . |
|____|___|  _|_| |___|_|_|_|___|
         |_| espruino.com
 2v10 (c) 2021 G.Williams

Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate


Brownout detector was triggered

ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)

The thing is I never had this problem before. Previously, I was using Micropython and was able to run the OLED display and connect to a wifi network simultaneously with no power problems. What could be causing this?