Return of Reckoning

hi, I would really like to use this addon however I seem to be receiving some errors. https://i.gyazo.com/f02792216444d06e32cb656426b6ef17.png
The castbars are not working for me either and the config tab has letters inside of eachother, idk it's really weird and im not sure what I've done ...

hi, I would really like to use this addon however I seem to be receiving some errors.
The castbars are not working for me either and the config tab has letters inside of eachother, idk it's really weird and im not sure what I've done wrong