after update my buttons to trigger the nodes are not clickable, some solution for it?
Restart Node-red, clear browser cache.
If it still doesn't work then stop node red and start it again in a terminal, and post the full text output here.
I restarted node red and raspberry few times. Probaply need to reinstall whole OS
No you don't need to reinstall.
Have you tried clearing the browser cache via the browser menus.
You have not posted the log as requested.
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