A more thorough explanation:

Contractual fault is a type of fault that occurs when someone fails to fulfill their obligations in a contract. This can happen intentionally or due to negligence. It can result in harm to the other party involved in the contract.

For example, if a contractor agrees to build a house for a homeowner but fails to complete the work on time or does a poor job, they are committing contractual fault. The homeowner may suffer financial losses or other damages as a result of the contractor's failure to fulfill their obligations.

Another example of contractual fault is when a company fails to deliver goods or services as promised in a contract with a customer. This can result in financial losses or other damages for the customer.

Overall, contractual fault is a breach of trust and can have serious consequences for both parties involved in a contract.