Database Error

I’m running WP 1.2, and just posted a new entry to my blog. I went ahead and posted, then I decided to activate the “hilite search results” plugin. Now, the entire blog is broken. When I go to the page, all I get is a screenful of this error:
Database error: [Got error 127 from table handler]
SELECT option_name, option_value FROM 02h_options
You can see this for yourself at https://www.mossroot.com/02h (that’s a zero in there).
I think that this is related to the “hilite search results” plugin, though I have it activated and working fine on my other WP blog (https://www.mossroot.com/lp). Both blogs use the same database, of course.
I’m not sure how to fix this problem. Any ideas, anyone?