when i try to validate my site i get 14 errors from the widget of that plugin looking like this:
# Error Line 309, Column 4: end tag for "ul" which is not finished.
Most likely, you nested tags and closed them in the wrong order. For example <p>...</p> is not acceptable, as must be closed before <p>. Acceptable nesting is: <p>...</p>
Another possibility is that you used an element which requires a child element that you did not include. Hence the parent element is "not finished", not complete. For instance, in HTML the <head> element must contain a <title> child element, lists (ul, ol, dl) require list items (li, or dt, dd), and so on.
any idea how i can fix this? if i disable the widget they are all gone