She was supposed to. The deal required Trump to release Daniels from liability for damages she might have caused him by making public any text messages, photos or basic information about Trump's sexual conduct, sexual partners or related paternity matters. But Trump did not sign the agreement, so Daniels says he never made good on this part of the bargain, and thus the contract is invalid.
Source: Los Angeles Times March 21, 2018 17:49 UTC