Suspect something happened in Group Permissions. Edit a group and check:
Edit User Group - Users and Permissions. Specifically the Reputation System section:
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attachment=46834]
I tried with your print settings, both for the user who sends and for the user who receives the points. Clicking the "Rate User" button I get the same error message. Interestingly, by accessing the button request link, I can access the modal as if it were a page and it is possible to change the reputation there:
(
https://i.imgur.com/gqu7f4E.png )
As you recommended, I already checked the button template and, apparently, everything is correct. From what I saw, it appears that I am not allowed to open the reputation modal on the screen. I will investigate what the problem could be.