Hi THP
Thanks for your post and Welcome to MYOB Community Forum.
When logging to MYOB Team app, make sure that your application is the latest version as well as the device you will use. Kindly make sure that the iOS is up to date as well. Also, please uninstall then reinstall the application. You may also check The Help Article Getting started with MYOB Team for further information.
Please let me know if you need further assistance.
If my response has answered your enquiry please click "Accept as Solution" to assist other users find this information.
Best regards,
Doreen