Password changed, Feed no longer working

Hi, I had to changed my password on my instagram page and now I get the following error message:

Unable to get results

• Error validating access token: The session has been invalidated because the user changed their password or Facebook has changed the session for security reasons.
  
  I have tried everything except deleting my account. I can also not find any documentation on what to do in this case. Can anyone please advise? Thx, Tina