Cannot read property 'length' of null

[Madhu-NEC]

While adding network settings of an API, it gives error cannot read property length of null

steps to reproduce:

1. Add API to APInf.
2. Select proxy API-Umbrella.
3. Add network settings to API.

Expected Result
API should be published.
Actual Result
Error: Cannot read property 'length' of null.
Note: APInf (version:latest) and apinf/API-Umbrella(version:0.15.0-apinf2) are running behind a VPN.