“I had to to turn off the plugin after activating it because of the error msgs.”
What kind of errors? If you look at the plugin file and see anything after the last php command thingy bracket, ( ?> ) then it’ll give an error, even if it’s just a blank space or carriage return. So double-check that in the plugin editor.
“I would like comments to be open for a number of days, and then close automatically.”
Oyvind, that’s what this plugin does. You can set how many days right in the file.