Fault is damaging behaviour which appears reprehensible. The damaging behaviour can also consist of a breach of contract. A distinction is made between intent (deliberate) and negligence. In the case of intent, success is aimed at, whereas in the case of negligence, damage is caused because the actor in the given situation did not apply the objectively required care of an averagely careful person.
German: Verschulden (841)
Source: LK-Lötscher, 11.05.2020