Need help with rfr wheel leonardo board

When I am connecting button and I press it. My wheel Center messes up and rotary encoder isn’t working for a while. What can I do?

Here’s the video I used to follow the instructions.

Oh and sometimes encoder moves center on its own too but just a tiny little bit. But when I attached button and press it the encoder input just stops for a few seconds.

Please read and use How to get the best out of this forum - Using Arduino / Introductory Tutorials - Arduino Forum

Please post schematics, and code using the above information.

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Start by following the advice given by @Railroader by posting the annotated schematic with links to each of the hardware items giving us technical information. Hint: remove the Delay(X); statements from your code as they are blocking.

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you have uploaded .HEX file firmware, you can't change any thing

Half the question... The code comes next?