Error navigating between pages ionic

Hi guys, I have the following error and it does not allow me to navigate between pages in my ionic app, I could help

I won’t read through your “code” screenshots, but the first screenshot means that you try to call a function of the page that doesn’t exist.

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Any suggestions for browsing the pages in my app menu to avoid this error

Yes, post text as text instead of images, as has already been mentioned.