AnsPres 4 b2: Categories can’t remove icon or add a new one

Couple of issues:

• I have a category icon class and I can’t remove it (blanking it out and saving doesn’t work)
• I set an icon for the category, but it never shows up.
• One of my categories has this in the icon class .. “<br /><b>Warning</b>:  Illegal string offset ‘icon’ in <b>/home/markj111/public_html/wp-content/plugins/anspress-question-answer/addons/free/category.php</b> on line <b>630</b><br />”