Additional uncaught exception thrown while handling exception.

<h1>Additional uncaught exception thrown while handling exception.</h1><h2>Original</h2><p>PDOException: SQLSTATE[HY000]: General error: 23 Out of resources when opening file &amp;#039;./nvinderdb/termstatus.MYD&amp;#039; (Errcode: 24): SELECT base.tid AS tid, base.vid AS vid, base.name AS name, base.description AS description, base.format AS format, base.weight AS weight, v.machine_name AS vocabulary_machine_name
FROM 
{taxonomy_term_data} base
INNER JOIN {taxonomy_vocabulary} v ON base.vid = v.vid
LEFT OUTER JOIN {termstatus} termstatus_base ON base.tid = termstatus_base.tid
WHERE  (base.tid IN  (:db_condition_placeholder_0)) AND (termstatus_base.status = :db_condition_placeholder_1) ; Array
(
    [:db_condition_placeholder_0] =&amp;gt; 1152
    [:db_condition_placeholder_1] =&amp;gt; 1
)
 in DrupalDefaultEntityController-&gt;load() (line 191 of /var/www/nvinder.ru/includes/entity.inc).</p><h2>Additional</h2><p>PDOException: SQLSTATE[HY000]: General error: 1016 Can&amp;#039;t open file: &amp;#039;./nvinderdb/semaphore.frm&amp;#039; (errno: 24): SELECT expire, value FROM {semaphore} WHERE name = :name; Array
(
    [:name] =&amp;gt; rules_get_cacherules_event_whitelist
)
 in lock_may_be_available() (line 167 of /var/www/nvinder.ru/includes/lock.inc).</p><hr /><h1>Uncaught exception thrown in shutdown function.</h1><p>PDOException: SQLSTATE[HY000]: General error: 1016 Can&amp;#039;t open file: &amp;#039;./nvinderdb/semaphore.frm&amp;#039; (errno: 24): DELETE FROM {semaphore} 
WHERE  (value = :db_condition_placeholder_0) ; Array
(
    [:db_condition_placeholder_0] =&amp;gt; 2070665439691c7e16a640c5.36521052
)
 in lock_release_all() (line 269 of /var/www/nvinder.ru/includes/lock.inc).</p><hr />