The provisions on liabilities arising from contracts shall apply mutatis mutandis to liabilities arising from other legal facts. Within the contractual relationship, it is always crucial to create and terminate this relationship. Favorable course of business cases (without adverse consequences), realization, event. the application of legal provisions is, in our judgment, limited in particular to the level of legal content, the level of the content of the contract, as well as the high-quality evidence of the performance of the contract and the speed and quality of the dispute settlement.