failed to send message: failed to send message: failed to wait for screen to stabilize: timeout waiting for condition

[153913232a-bit]

when i send localhost:3284/message with body:
{
"content": "Hello, agent!",
"type": "user"
},
then output
{
"$schema": "http://localhost:3284/schemas/ErrorModel.json",
"title": "Internal Server Error",
"status": 500,
"detail": "unexpected error occurred",
"errors": [
{
"message": "failed to send message: failed to send message: failed to wait for screen to stabilize: timeout waiting for condition"
}
]
},it looks like something wrong with server, please help me