Can't accept friend request: invalid User Id

Hi,  the last three people who sent friend requests,  I noticed I got this response when trying to accept them.   Prior to today,  if I logged out and back in,  i was able to get get past the error message and Accept them.   Today i can't.   I am on chrome.   Version 65.0.3325.162 (Official Build) (64-bit)

I left it as is versus trying another browser so you could see what the situation is while its stuck.    Let me know if you need me to test anything!  Thanks!

I'd close this since it now seems to be working.