That firmware has had the Hikvision backdoor vulnerability fixed, so the config file extract doesn't work with no credentials.
But if it's really a DS-2CD2032 then you should be able to use the reset button on the back of the case.
Press it, power on the camera, keep it pressed for around 30 seconds and the camera will go 'Inactive' at which point you can use SADP to 'Activate' it with your own strong password.
If the camera is not accessible physically - then you can use the Hikvision
tftp updater to apply the same version of firmware as is already installed.
That will reset the camera to defaults.
Hikvision IP Camera Emergency Firmware Recovery TFTP. Check this thread for info on how to use this tool to un-brick your Hikvision camera.
ipcamtalk.com
Firmware here :
ipcamtalk.com