Journeys 21D assign journeys functionality not working

Summary:

21 D -Assign journeys functionality not working.

Content (required):

21 D -Assign journeys functionality not working. I am not able to search a person when I try to assign the journey to a person. The search show no data. When I assign it to myself, I cannot see it in my journeys, but I do get a notification.

Version (include the version you are using, if applicable):

21 D -Assign journeys functionality not working. I am not able to search a person when I try to assign the journey to a person. The search show no data.

When I assign it to myself, I cannot see it in my journeys, but I do get a notification. Please help.