Error adding a study about nada HOT 3 CLOSED

Enable the error logging feature in NADA by going to application/config/config.php file and look for the setting 'log_threshold' and set it to 1, save the config file and try uploading the DDI again.

To see the error logs, look inside the 'logs' folder. The logs should have the error details. If you see no logs being created, please make sure the logs folder has both read/write permissions set.

If this does not solve the issue, please provide info about your environment. e.g. Windows or Linux. Apache or IIS?

from nada.

Thank you. Environment is as follows Linux and Apache.
Yes the Logs now have error details. This is the error that is coming up.

ERROR - 2020-02-27 06:20:31 --> Severity: error --> Exception: Call to undefined function JsonSchema\Uri\json_decode() /var/www/html/vendor/justinrainbow/json schema/src/JsonSchema/Uri/UriRetriever.php 210

from nada.

This has been resolved by enabling JSON support .

from nada.