Not able to connect to JIRA usinf search

URL to connect to JIRA GET method:
https://test.atlassian.net:443/rest/api/2/search?maxResults=100&jql=project+%3D+Integrations+AND+sprint+IN+openSprints()

{
    "errorMessages": [
        "The value 'Integrations' does not exist for the field 'project'.",
        "Field 'sprint' does not exist or this field cannot be viewed by anonymous users."
    ],
    "warningMessages": []
}