What kind of e-brake do you have?
Is the e-brake cable attached to the caliper?
Or do you have e-brakes (drums) in the hat portion of the rotor?
If they are drums in the hat portion of the rotor then the shoes must be adjusted closer to the drum or rotor
This is accomplished by rotating the star wheel adjuster.
If they are attached to the brake caliper and the brakes are soft or the e-brake does not hold
Then they must be adjusted. They are rotated to return them into the caliper.
Try rotating them out a bit.
Different cars have different methods for adjusting the e-brake calipers
Hope this helps.