use a constant text as tag, for example user to get all information of the current user
Clear TinyDB, correct your blocks accordingly and test
use Do it to debug your blocks, see also tip 4 here App Inventor: How to Learn | Pura Vida Apps
see also Live Development, Testing, and Debugging Tools
Taifun
Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by
Taifun.