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@tinayemakoni This issue is related to Sanic and SocketIO
Please update these packages and dependencies issues and even pip version also give issue.
python-engineio==4.3.0
python-socketio==5.5.0
rasa==3.0.2
rasa-sdk==3.0.2
sanic==21.6.0
Sanic-Cors==1.0.0
sanic-routing==0.7.0
sanic-jwt==1.7.0
sanic-plugin-toolkit==1.2.0
Sanic-Plugins-Framework==0.9.5
socketIO-client==0.7.2
OR Ref this thread for more detail discussion: Rasa 3.0 error socket.io - #13 by nik202
Tip: you can use --use-deprecated=legacy-resolver if you need so.
Good Luck!