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: 2006 MySQL server has gone away: SELECT source FROM {url_alias} WHERE alias = :alias AND language IN (:language, :language_none) ORDER BY language ASC, pid DESC; Array
(
    [:alias] =&amp;gt; product/chlorine-tabs-powerful-3-inch-jumbo-size
    [:language] =&amp;gt; en
    [:language_none] =&amp;gt; und
)
 in drupal_lookup_path() (line 176 of /var/www/html/chennaichemicals.com/includes/path.inc).</p><h2>Additional</h2><p>PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: INSERT INTO {watchdog} (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6, :db_insert_placeholder_7, :db_insert_placeholder_8, :db_insert_placeholder_9); Array
(
    [:db_insert_placeholder_0] =&amp;gt; 0
    [:db_insert_placeholder_1] =&amp;gt; php
    [:db_insert_placeholder_2] =&amp;gt; %type: !message in %function (line %line of %file).
    [:db_insert_placeholder_3] =&amp;gt; a:6:{s:5:&amp;quot;%type&amp;quot;;s:12:&amp;quot;PDOException&amp;quot;;s:8:&amp;quot;!message&amp;quot;;s:328:&amp;quot;SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: SELECT source FROM {url_alias} WHERE alias = :alias AND language IN (:language, :language_none) ORDER BY language ASC, pid DESC; Array
(
    [:alias] =&amp;amp;gt; product/chlorine-tabs-powerful-3-inch-jumbo-size
    [:language] =&amp;amp;gt; en
    [:language_none] =&amp;amp;gt; und
)
&amp;quot;;s:9:&amp;quot;%function&amp;quot;;s:20:&amp;quot;drupal_lookup_path()&amp;quot;;s:5:&amp;quot;%file&amp;quot;;s:52:&amp;quot;/var/www/html/chennaichemicals.com/includes/path.inc&amp;quot;;s:5:&amp;quot;%line&amp;quot;;i:176;s:14:&amp;quot;severity_level&amp;quot;;i:3;}
    [:db_insert_placeholder_4] =&amp;gt; 3
    [:db_insert_placeholder_5] =&amp;gt; 
    [:db_insert_placeholder_6] =&amp;gt; https://chennaichemicals.com/product/chlorine-tabs-powerful-3-inch-jumbo-size
    [:db_insert_placeholder_7] =&amp;gt; 
    [:db_insert_placeholder_8] =&amp;gt; 216.73.216.122
    [:db_insert_placeholder_9] =&amp;gt; 1781415142
)
 in dblog_watchdog() (line 163 of /var/www/html/chennaichemicals.com/modules/dblog/dblog.module).</p><hr /><h1>Uncaught exception thrown in shutdown function.</h1><p>PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: DELETE FROM {semaphore} 
WHERE  (value = :db_condition_placeholder_0) ; Array
(
    [:db_condition_placeholder_0] =&amp;gt; 13875255336a2e3cdef34ca9.39354102
)
 in lock_release_all() (line 269 of /var/www/html/chennaichemicals.com/includes/lock.inc).</p><hr />