Opensearch Dashboards visualisation plugin help

Hello,

I want to create a new plugin which will make a POST request to an API and will show the response in the view.
I created my input using Eui forms

    <EuiFlexItem>
      <EuiFieldSearch
        placeholder="Search..."
        fullWidth
        readOnly={false}
        disabled={false}
        aria-label="Use your query"
      />
    </EuiFlexItem>
    <EuiFlexItem grow={false}>
      <EuiButton>Search</EuiButton>
    </EuiFlexItem>
  </EuiFlexGroup>

The problem is that the input si disabled and can’t write text or click the button


Does anybody knows what is the issue and can help me with some information about why inputs are disabled.

Thank you