[Plugin: SharDB] Database tables unavailable

Getting the error:

One or more database tables are unavailable. The database may need to be repaired.

Of course, this is all very general. So, some files.

1. db.php is as-as in wp-content/
2. shardb-admin.php is as-is in wp-content/plugins/shardb/
3. db-settings changes:

// how many characters of hexidecimal hash
$shardb_hash_length = 1;
// what is the prefix of your blog database shards (everything before the hexidecimal hash)
$shardb_prefix = 'shar_xxx_';
// set a string to be used as an internal identifier for the dataset
$shardb_dataset = 'sh';
// do you want to put your primary blog (blog_id 1) in its own 'home' database?
$enable_home_db = true;
// how many, if any, VIP databases do you have?
$num_vipdbs = 0;
// add this to set the write master read priority (default 1)
$shardb_master_read = 99;
// add this if all of your databases are on a local server
$shardb_local_db = true;
// use this function to add a read slave host
add_slave($read_priority, $hostname, $local_hostname, $user, $password);

// VIP DB's
//if ( $enable_home_db === true )
	//add_vip_blog( 1, 'home' );    // home blog

I have 0-9, a-f, global and home databases, which map to “shar_xxx_”; for instance: shar_xxx_0, shar_xxx_1, shar_xxx_2, …, shar_xxx_a, shar_xxx_b, etc.