Hey there rodrij!
I have an article here that can help you with this issue. The article can be found right here:
I would suggest using this article to check and make sure that VoiceOver is not set to activate upon triple-click on the home button. More information about this can be found in this section of the article:
You can configure the device to display options for VoiceOver, Zoom, or White on Black when you triple-click the Home button. This feature is off by default; to enable it, tap Settings > General > Accessibility > Triple-click Home > Ask.
Thanks for using the Apple Support Communities!