Ever since upgrading to sparkle, I've had a couple of errors - anyone know how to solve these? Help! html is greek to me!

1. I get this error at the bottom of my blog homepge:

MySQL error!

Duplicate entry '1212405' for key 1(Errno=1062)

Your query:
INSERT INTO evo_hitlog( visitTime, visitURL, hit_ignore, referingURL, baseDomain, hit_blog_ID, hit_remote_addr, hit_user_agent ) VALUES( FROM_UNIXTIME(1156558460), '/', 'invalid', '', '', 1, '75.21.213.255', 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)')

2. My RSS feeds stopped working with this error:
<div class="error"><p class="error">MySQL error!</p><p>Duplicate entry '1212405' for key 1(Errno=1062)</p><p class="error">Your query:<br /><code>INSERT INTO evo_hitlog( visitTime, visitURL, hit_ignore, referingURL, baseDomain,

3. My stats stopped updating on the day I upgraded (8/01/2006).

any ideas?