3018680 - Error: 'The database connector 'crdb_v12_dsl_driver.dll' could not be loaded.' when refreshing a report in Crystal Reports

• Unable to refresh a report.
• Error: "The database connector 'crdb_v12_dsl_driver.dll' could not be loaded."
• When refreshing a report in Crystal Reports, it display the error:
   
  " Failed to load database information.
    Details: The database connector 'crdb_v12_dsl_driver.dll' could not be loaded.
    The correct version of the database client for this database type might not be installed. "
    
      

• SAP Crystal Reports 2016
• SAP Crystal Reports 2020
• SAP Crystal Reports 2025 

CR, UNX, CRFE, CR4E, CR for E , KBA , BI-RA-CR , Crystal Reports designer or Business View Manager , Problem