For RT dating, I spent a long day installing. Set up many cool features and then I realized that when I click on my user profile it says Page Not Found with and error that it is missing. Same with user setting.
I installed Buddypress then BBPress. Not sure what is breaking this.
Please try after re-saving permalink. You can find this setting under Dashboard -> Settings -> Permalinks.
If this not resolve your issue, kindly provide you site URL and login details.
This worked perfectly! Thanks for the 5-star support!