My Users can't post!

For some reason the users of my new website cannot post. It says only the admin can. Can somebody tell me how to change this?

change permissions of the forums,
can you provide link to your forum?

i can't see any problems on your site, i tried post and open topic like a guest and it was successful everywhere i try

I solved it by myself! Do you know how to make a sticky?

yes, i know, read this
https://help.forumotion.com/administration-panel-problems-f44/how-do-i-make-a-thread-a-sticky-t23195.htm?highlight=how+to+create+sticky