No. It was not enabled. Difficult to figure out where this option is in the new OJS 3 interface.
It seems now is working properly. Let’s see if the harvest now works
Please note, that the version of OJS that you’re using is no longer supported by PKP. I recommend that you upgrade to the newest version of OJS, as it is possible that your issue will be resolved by upgrading. If you do upgrade, and your issue still occurs, feel free to create a separate post. However, other community members may wish to offer assistance for this post.