I require some help
 

Hello mountain bikers! I've ran into big issue on my tubeless maxxis tire, my presta valve has stopped pulling and receiving air, even when I unscrewed the head and pushed it nothing happened, I really don't wanna spend more money on new tires, help me pls

Ya... totally man. *****in' .....WTF does a presta valve have to do with buying new tires?

troll...

It's probably clogged

:popcorn

What's the prob, guys?
Sounds like the sealant sealed your valve. Clean or replace the valve.

Change valve

remove the valve core and push something through the open valve to remove any sealant that might be clogging it. an old spoke, a toothpick, or something like that should do the job. the process takes 30 seconds, there's probably nothing wrong with your tires.