FEEDBACK and possible fix?

I discovered the way to do selected quotes some time back now, on computer (not on phone). But it doesn't always work. I often get:

QUOTE:
Forum Error
There has been a serious error loading the forum. No further information is available.
Please contact the administrator if this message persists.

Note If you are the administrator, and need help with this problem, then Turn off CustomErrors in your web.config.
TRY AGAIN
-UNQUOTE.

Sometimes it can depend on how I selected & highlight before clicking on the black button. This morning I couldn't get it to work at all.

Can you check this out please. I like to use it a lot.

Thanks Paul.

cheers, Julie