UBB.threads PHP Forum Software Community Forums Resources and Customizing How Do I? Error message when deleting a post

Hello
I deleted a post and when I clicked the delete button then on next page
this message came up as it normally do

forum message
This post has been deleted. In a moment you will be automatically returned to the forum.

BUT at the top of the page this error message was shown
Warning: Unterminated comment starting line 12 in /XXXXX/XXXXX/XXXXX/forums/cache_builders/custom/portal_box_48.php on line 12

What does it mean? please advise
Thanks

One of your Custom Islands (portal box) that you created has an code error in it.

Go to:
Control Panel > Portal & Islands > Custom Islands

Either:
Correct your php code error in the body section
or
Disable the custom island within Column Layout page so that its not attempting to build


The custom island that you created is located on your server at:
forums/cache_builders/custom/portal_box_48.php

Thank you Isaac, One day ago I disabled that custom island. I didn't change anything in it cause intended to use it again later on.
However I have now deleted content except for this


Thanks again