Challenge with running my code

Tell us what’s happening:
i have not been able to run my codes for 2 days now. i keep getting this message
“TypeError: t.querySelectorAll(…).forEach is not a function”

please what can i do

Your code so far

<h1>Hello World</h1>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:43.0) Gecko/20100101 Firefox/43.0.

Challenge: Say Hello to HTML Elements

Link to the challenge:

I think that in the past when people have had that problem in the past, it has been a browser glitch. Reboot, clear your browser cache, try a different browser. That usually clears it up. If not, you have the right code so just move on.

It looks like your computer is reporting that you are on Firefox version 43. If that’s true, you definitely need to update your browser. The current Firefox version is 81.

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