Message d'erreur avec sondage Sympoll sous Spip

Bonjour à tous,

J'ai mis en place un sondage "Sympoll" sur mon site mais je me retrouve avec
des messages d'erreurs (voir ci-dessous) en bas de ma page. Je ne sais plus
quoi faire ??
Merci de votre aide.

Warning: Can't connect to local MySQL server through socket
'/var/lib/mysql/mysql.sock' (111) in
/home/sites/site67/web/spip/ecrire/inc_db_mysql.php3 on line 26

Warning: MySQL Connection Failed: Can't connect to local MySQL server
through socket '/var/lib/mysql/mysql.sock' (111) in
/home/sites/site67/web/spip/ecrire/inc_db_mysql.php3 on line 26

Warning: MySQL: A link to the server could not be established in
/home/sites/site67/web/spip/ecrire/inc_db_mysql.php3 on line 26

Warning: Can't connect to local MySQL server through socket
'/var/lib/mysql/mysql.sock' (111) in
/home/sites/site67/web/spip/ecrire/inc_db_mysql.php3 on line 26

Warning: MySQL Connection Failed: Can't connect to local MySQL server
through socket '/var/lib/mysql/mysql.sock' (111) in
/home/sites/site67/web/spip/ecrire/inc_db_mysql.php3 on line 26

Warning: MySQL: A link to the server could not be established in
/home/sites/site67/web/spip/ecrire/inc_db_mysql.php3 on line 26