If you want to connect Insightly with Toky, you must provide the Insightly subdomain in the integration parameters. If you want to get your subdomain, follow these steps:
Log in to your Insightly account
Check your browser address bar and you will find something like: https://abcdabcd.insight.ly.
The word before .insight.ly is the subdomain, in this example is abcdabcd.
Copy it and paste it in the corresponding field in your integration parameters.
Sometimes you can also find two words in the subdomain as you can see in this example. Here the subdomain you must provide to Toky is crm.na1