Using ZappySys ODBC PowerPack product with Informatica You might get below error during Object Import Process for Source / Target Designer. Refer this article for reading JSON / REST API using ODBC Driver in Informatica
REP_12014. An error occurred while accessing the repository
This error might occur due to the fact that your ODBC DSN or Custom Objects not configured correctly. (i.e. Body / Url / Header or Credentials are wrong)
To troubleshoot what is the real error first try to run a simple query in on Preview Tab
select * from YourTableName
Now if you see error try to fix it and then go back to Informatica mapping designer and try to import source / target schema see you get error.
You can also enable detailed logging to capture error.