In order to track own issues with the registrar module, you can enable debuggingwith module logs in WHMCS.
Enable module logs in WHMCS
You can configure and see entry logs at Configuration () > System Logs > Module logs
Enable “Module logging”.
When logs are enabled, many entries can be created and module logs can be easily flooded by any active modules !
It is recommended to not enable logs full time or to put in place a script in order to purge the table tblmodulelogs.
Enable logs in the module
Edit the module configuration file config.inc.php located in the module directory to set the variables below:
$netim_debug If set to true, an entry in the logs will be created for each new function called in the module with its parameters (in the request) and its return (in the response). It is then possible to know which parameters were given by WHMCS to the module as well as what the module returned to WHMCS for a particular function call.
$netim_api_debug If set to true, an entry in the logs will be created for every API call with its parameters (in the request) and its result (in the response). It is then possible to track all communications between the module and Netim through the API.
$netim_check_debug If set to true, an entry in the logs will be created for every domain availability search.
Information
Please note that the synchronization script doesn’t generate any logs. Rather it displays in the standard output. If you want to log its execution, proceed with a redirect of the output to a log file in the cron task definition.