The immutability of blockchain files is a basic feature to ensure safety and transparency, but it also offers challenges when errors or disputes. The legal framework is changing to solve these problems in many ways. A number of legal areas discover legal mechanisms to allow errors in blockchain files, capable of creating special procedures or exceptions to immutability for verified errors. Blockchain -based systems often combine smart contracts, which can automatically apply agreements. In case of dispute, legal standards for smart contracts are being developed to ensure that they can be executed and may be modified if necessary. Different countries have different approaches to adjust the blockchain; For example, the European Union’s eIDAS provides a framework for electronic identification and reliability services, which can help solve problems related to the validity and application of blockchain files. Courts and legislators also adjust traditional legal principles to adapt to blockchain technology, and realize the need to rectify or terminate blockchain -based contracts under certain conditions. These legal frameworks are to balance the advantages of blockchain immutability with the need to be flexible in adjusting errors and resolving disputes.