App says keep stoping

before eagle update my app is good but after that it says app keep stopping when it going from first screen to second screen and app is closing, please help me. This is my aia
LightsON.aia (1.5 MB)

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I think this might help you How to switch screens correctly

If this won’t work read this Unable to jump between screens!

This is what causes the error, you have multiple sliders in your app