Your designer properties should look like this:
Nope
Third time lucky, set your FirebaseURL to:
You are trying to select item 0.3 from a list.
What is it 0.3
0.3 is the result you get after dividing 3 by 10
an index can only be an integer value like 1, 2 or 3
It would really help if you provided a screenshot of your relevant blocks, so we can see what you are trying to do, and where the problem may be.
To get an image of your blocks, right click in the Blocks Editor and select "Download Blocks as Image". You might want to use an image editor to crop etc. if required. Then post it here in the community.
Taifun
Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by 
Taifun.
w
????
Do you not see the .3 in the index of the third select in the event handler for the Firebase Got Taglist event.
Was that a positive decision on your part to put that there, or were you swatting a fly on your keyboard without looking at the cursor?
How many times have you read the code that you write?
Do you have good reasons for that code?
what are you doing now
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh lol
If the client presses the enter button without entering the data, it takes him to the next screen. How do I force him to enter the data?
The first image appears when the client enters the names in Firebase. What is the solution?
concerning the first screenshot "For a custom firebase host you first must set your authentication server before using authentication features"
you already received the answer to that error 3 times... how many times more do you need the answer before adjusting your settings?
Taifun
The error message says you are asking for item 3 of a list with only two items.
It even shows the list, with its only two items.
Where have I seen a place where you ask for item 3 of a list?
P.S. This is what happens when people try to select items from a list without first testing if the list is long enough:
(Canned Reply: ABG- Export & Upload .aia)
Export your .aia file and upload it here.
P.P.S. Here is a tool you can use to explore the contents of your FireBase DB: