Help! my blog got database error!?

Help please! I won’t die but it feels like an emergency, almost. :-/

Suddenly getting WordPress database errors on my blog… Look: https://dgold.info/radio/

Would really like to have my page up right now, have a webcast scheduled for tomorrow morning… Blog’s been working great for months… I have a backup from 5 days ago from Skippy’s db-backup plugin — this is my first crash — I don’t know IF I should try to replace my db with the backup, if so how?

Hoping there’s another way to fix this so I don’t lose today’s posts… Thanks in-advance for ANY advice/help

WordPress database error: [Got error 28 from table handler]
SELECT DISTINCT * FROM fm_posts WHERE 1=1 AND post_date_gmt <= '2005-09-18 02:36:59' AND (post_status = "publish") GROUP BY fm_posts.ID ORDER BY post_date DESC LIMIT 0, 5

WordPress database error: [Got error 28 from table handler]
SELECT DISTINCT YEAR(post_date) AS year, MONTH(post_date) AS month, count(ID) as posts FROM fm_posts WHERE post_date < '2005-09-17 21:36:31' AND post_status = 'publish' GROUP BY YEAR(post_date), MONTH(post_date) ORDER BY post_date DESC