How to fix: Uncaught (in promise) Error: Invalid elementID: Length of the string: [1,255]. ASCII characters only. in agora.io SDK

I updated my agora.io SDK from '2.4' to '3.0.2' and the message below appear on console log.

Uncaught (in promise) Error: Invalid elementID: Length of the string: [1,255]. ASCII characters only.
at s (AgoraRTCSDK.min.js:2)
at Object.t.play (AgoraRTCSDK.min.js:8)

Anyone could help me with that?

Thanks a lot