Well if you created the page in Wappler and included it on the page, its js include will be on the page.
Looking at your code you probably copy pasted some parts of some page in another empty page, so app connect didn’t get included on the page.
Use the menu on your screenshot to add it please, and don’t copy-paste code around the pages if you are not sure what you are doing, please.
I’m sorry but it is really hard to tell what’s wrong on your page without seeing it.
I see your jquery include is probably missing on the page now.
Please upload your page to some server where i can access it and check it. We are just going in a circle right now, wasting both ours and your time guessing what you might have done wrongly.
Please can you just upload your page to some server where it is publicly accessible… we started with a date formatting issue and now we are debugging your server connectivity.
A problem that could be fixed in like 10 seconds by me looking at it already takes more than 3 days!