FREEPBX 13 with asterisk 13

I just upgraded freepbx from 12 to 13. However some modules say I need asterisk 13. When I run to command

I get this

Pick the Asterisk Version you would like to change to.
Press 1 and the Enter key for Asterisk 1.8
Press 2 and the Enter key for Asterisk 11
Press 3 and the Enter key for Asterisk 13 EXPERIMENTAL
Press 9 and the Enter key to exit and not change your Asterisk Version

Is asterisk 13 still experimental or is it stable now?

On it show this

STABLE – 10.13.66
Release Date: 2016
FreePBX 13 • Linux 6.6 • Asterisk 11 or 13

You are using an older version of the script, it no longer uses the word experimental for 13.

You need Distro Upgrades - you are seeing this because you have not updated your distro - look here:

System Admin Pro will let you update through the GUI - or they can be done manually.

I got all updated thanks