Hi, My Pen Tool In Illustrator Is Not Working - It has a little stop sign to it's bottom right

[Grace5E91]

Hi, My Pen Tool In Illustrator Is Not Working - It has a little stop sign to it's bottom right. I reset the preferences and went to the older version before an update and it's still not working. 

[Larry G. Schneider · Accepted solution]

Are you trying to work on a locked layer?

[Grace5E91 · Accepted solution]

Hi, thank's I just realized I was not on the layer and the layer was locked.