Fatal signal 11 error

Hello,

I wrote an (really basic) application to control access for a building. This application exists of multiple buttons (10 in total).
Per door there are 2 buttons. One button acts as an pulse buton. When clicking the pulse button a timer function will be enabled and after 5 seconds the function will be disabled.
The other button enables or disables the function manualy (without a timer).

When the function is enabled a URL request is send out to load within a WebView. The URL that is...

Fatal signal 11 error

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