Want to display all list in TinyDb from screen1 start value(=a list)

please provide this solution

Your blocks do not make much sense
Passing a value to another screen and then storing it in TinyDB, you could have stored it in the previous screen directly
Also what is that for loop about?

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