The following are possible reasons for this issue.
- The FE API has not been purchased or has not been unlocked on the database.
- The FE user account initializing the API has invalid login credentials. Change the FE user or confirm that the correct password is being used in the INIT string.
If your organization has not purchased the API add-on module, contact your account representative.
If you have purchased the add-on module, generate the unlock code online using the Unlock Code Generator.