Please do not keep making new topics for this.
If you have added any new codes to your forum try disabling javascript in your browser and see if it lets you in that way. I need to also let you know that forums with this service have to be English only, per the
SMF for Free - Terms of Use To disable Javascript in Firefox:
Tools > Options > Content > take checkmark out of "enable Javascript" in Firefox
To disable Javascript in Internet Explorer:
From the Tools menu, choose Internet Options... .
Click the Security tab.
Click Custom Level... .
Scroll to the "Scripting" section of the list. Click Disable or Enable.
Close and restart your browser.