This morning, as I browse from lesson to the next using the Learning Centre, I often get this error message at the top of the page and the sound files do not appear (even though the rest of the page looks fine):
Warning: mysql_fetch_row(): supplied argument is not a valid MySQL result resource in /home/kclass/public_html/learningcenter/include/lesson.php on line 42
Warning: Invalid argument supplied for foreach() in /home/kclass/public_html/learningcenter/include/lesson.php on line 49
It's really annoying because I have to click on 'Learning Centre' tab and start all over again, simply refreshing the page doesn't work.
The problem seems to be particularly with Beginner Lesson #19, which I can't get to load correctly at all, even if I start all over again via the Learning Centre front page.
Really hope you can help. Thanks very much.
