I guess you are reffering to this button: https://i.imgur.com/2WCG2xF.png
They are most likely not related issues unfortunately. I have disabled the search plugin, and tested the button, and it was working exactly the same way when the plugin is enabled. Let me know if this is not the case.
You can always check if an issue is related to a certain plugin, by de-activating that plugin and seeing if the problem persists.
It logs a missing function statement. It's not related to the search, and it may not cause any issues, but I thought I will let you know 🙂
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