Why am i getting spammed?

Hi, so i think I am under attack or something. I am getting a lot of BOT comments and BOT users and as a result, my Bandwidth keeps going fast. any ideas what i can do to stop this?
18%20AM

05%20AM

I tried to use ReCaptcha, i couldn’t get it to work. it wont recognise my keys for whatever reason. Then using the default Captcha doesnt display.

18%20AM

Finally,

Is it possible to mass delete Users and Comments? help will be greatly appreciated.

Hi @thatHman

Have you set your config.inc.php file Font section to built-in captcha?

; Font location for font to use in Captcha images
font_location = /usr/share/fonts/truetype/freefont/FreeSerif.ttf

Please, double check if the folder path is correct.

Best,
Israel