Cognos Controller Web 10.4.2
When open a period to work with you get this error
There are invalid forms for Submission 1. Please check the form definition and process the form layouts or contact your administrator
Check a other period and company if that works.
Can be that this period contains forms that you do not use, like forms that do not contain any accounts, they will not work in controller web.
To open a company for submission click on the z icon.