If you haven't cleared it out yet, then we can maybe try and track down which line is actually causing it to go blank. One by one you can delete the shout entries and then test if it comes back

delete from ubbt_SHOUT_BOX where SHOUT_ID='18'

That will delete the last one. Then try:

delete from ubbt_SHOUT_BOX where SHOUT_ID='17'

Keep working your way backwards and checking to see when it comes back and then that would tell us what line actually caused it to blank out. I can't imagine it would be the ~ but not sure.