Hi InTuneMusic,
Thanks for your post and for providing screenshots so we can further assist.
Regarding the error message, 'Something went wrong on our end' when processing pays, please confirm the Windows version you are using. This information is vital in using MYOB AccountRight as we have a minimum system requirement. I would suggest to speak with your IT provider about updating your computers Windows version, all Windows updates and security updates. This workaround also includes the issue you're having when logging into AccountRight. Lastly, you may also try using a different device to see if the issue persists.
Please feel free to create a post again if you require further assistance.
If my response has answered your inquiry, please click "Accept as Solution" to assist other users in finding this information.
Best regards,
Doreen