I was creating an app for hospital, I was using Colintree List View and this error occurs again and again

[Ultron_Slayer]

This are the blocks
The runtime error now

Please tell how to fix it

[Still-learning (1-2-3-4...)]

Your index value only problem.

See this solved blocks. Use Index is in list block. And Kindly adjust in when Collin tree extra button click. I assure it will work

Help me to solve out ColintreeListView element click

All you had to do is change your blocks as already told you [image] search_option_1.aia (58.3 KB)

[Ultron_Slayer]

Thank You so much!!!