SQL ERROR [ mysqli ] with PHPBB3

[victor.frachet93]

I am using PHPBB3 on x10hosting and the front end works great
Only the ACP (admin panel) doens't work
I get the following error :

SQL ERROR [ mysqli ]

Lost connection to MySQL server during query [2013]

SQL

SELECT COUNT(attach_id) AS total_orphan  FROM phpbb_attachments   WHERE is_orphan = 1  AND filetime < 1293692982

BACKTRACE

FILE: includes/db/mysqli.php
LINE: 163
CALL: dbal->sql_error()

FILE: includes/acp/acp_main.php
LINE: 490
CALL: dbal_mysqli->sql_query()

FILE: includes/functions_module.php
LINE: 507
CALL: acp_main->main()

FILE: adm/index.php
LINE: 74
CALL: p_master->load_active()

[masshuu]

That error seems to pop up once in a while unless you get it continuously.
If you get it every time or almost every time then i can see if someone can look into it.