Hi,
Hi,
If you are using the same credentials for login in Marketo.com and Marketo event app then go to Admin-> Users & Profiles and check if you still have Mobile Application/Permission role added in your profile. And if you are using different userid for Event App then Go to Admin-> Users & Profiles and check the user's Access Expires date. If the date is a past date then correct it or if the date is valid and then reset the password.
Thanks
Ask someone with Admin privileges to double check your user role still has access to the Mobile app.
https://docs.marketo.com/display/public/DOCS/Grant+Users+Access+to+the+Check-in+App