I meet some error when use or configure superfish's block, increasing the value of 'max_allowed_packet' can't resolve!

I enable the module of superfish,it ok,but when i assigned the block of superfish, the page goes wrong,and i disassigned the block of superfish ,error disppear. i refer some answer, increasing the value of 'max_allowed_packet', it can't resolve!
Then,i sonfigure the superfish's block, error comeback again,like this:

Additional uncaught exception thrown while handling exception.
Original

PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: SELECT s.lid, t.translation, s.version FROM {locales_source} s LEFT JOIN {locales_target} t ON s.lid = t.lid AND t.language = :language WHERE s.source = :source AND s.context = :context AND s.textgroup = 'default'; Array ( [:language] => zh-hans [:source] => Configure how content input by users is filtered, including allowed HTML tags. Also allows enabling of module-provided filters. [:context] => ) in locale() (line 684 of E:\Web\xampp\htdocs\drupal7\modules\locale\locale.module).
Additional

PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: SELECT s.lid, t.translation, s.version FROM {locales_source} s LEFT JOIN {locales_target} t ON s.lid = t.lid AND t.language = :language WHERE s.source = :source AND s.context = :context AND s.textgroup = 'default'; Array ( [:language] => zh-hans [:source] => The website encountered an unexpected error. Please try again later. [:context] => ) in locale() (line 684 of E:\Web\xampp\htdocs\drupal7\modules\locale\locale.module).
Uncaught exception thrown in session handler.

PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away in _drupal_session_write() (line 209 of E:\Web\xampp\htdocs\drupal7\includes\session.inc).

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these erroe don't happen in other operate in drupal7, i use xampp in local. please help me resolve this problem, thank you.