sorry!
I'm using version 6.4.2 for the error will become.
Explanation of the error is "Fatal error: Cannot re-assign $this".
PHP5 server side would have been used for the error.
However, what should I do when I do I want to use this version?
Thank you for your advice.

I don't understand?
But is this ubb classic or ubb threads.
What is the link to your site?

Sorry!
I have to use the 6.4.2 version of UBB.threads


http://soulsurvivors.chicappa.jp/members/community/mboard/install.php

I tried to verify that the server where the contract said I was not using PHP4.
What improvements need to program itself?

Without major changes, 6.4.2 will not run under PHP5. We didn't support PHP5 until 6.5 was released. It took some pretty hefty changes as we had used $this as a variable throughout the scripts, so all of those had to be renamed.

Moved to UBB.threads v6 forum.

Thanks all