To correct your issue, you need to follow any of the below methods:
You should find the affected rows and manually update them with correct values. To do this, you can execute T-SQL (Transact-SQL) queries against the table or alternatively, refer to the information provided by error 2570. You can set it to any of acceptable default or specific value.
Note: You can’t run DBCC command to repair the database as it can’t determine the value to be placed instead of invalid column value.
In case if affected rows are large in number and it is not possible to update them manually, you can restore them from backup. If the above measure is not feasible because of backup unavailability or corruption, you need to use MDF Recovery applications to safely repair and restore your database. Such MDF Repair software use powerful scanning algorithms and offer advanced repair and restoration options together with interactive user interface. I like to suggest Stellar Phoenix SQL Recovery which is the foremost SQL Repair tool to repair damaged mdf files and SQL databases.