canvas stream flashphoner

Hello, i'm using flashphoner with AWS correctly when stream my video on Youtube. I'm trying now to add some text on the video following this: https://habr.com/en/company/flashphoner/blog/568682/ Copying and pasting the code ther i'm receiving this error TypeError: Failed to execute...

Hi Flah Phoner I actively use your system and I am very satisfied. I am developing a product and I want to use flashphoner for it. I want to add screen sharing and camera to canvas element and to send this element as a stream I attached an image