If a banner similar to the one in the screenshot below appears, there is an option to remove it.
Follow these steps to get rid of the Twilio Error banner :
In the top-left corner of the navigation sidebar, you'll find a tab to switch between your sub-accounts. Click it.
Click the "Switch to Agency View" button.
Go to the "Settings" menu.
Once you're inside the settings menu, click the "Company" tab. Once done, scroll down until you find the Field that says " Custom CSS." Copy this code and paste it in the field. the code is : .hl_alert_twilio{display:none}
Make sure to click the "Update Company" button once you have entered the code.
Now you have successfully removed the twilio error banner. This will be applied to all the locations to hide all Twilio banners.