error update plesk 9.5.4

[3a-informatique]

hi,

error update plesk 9.5.4

ERROR: PleskMainDBException
MySQL query failed: MySQL server has gone away

Additionally, an exception has occurred while trying to report this error: PleskMainDBException
MySQL query failed: MySQL server has gone away

0: common_func.php3:206
db_query(string 'select `id`,`name`,`type`,`uri` from DashboardPreset where `id`=5')
1: class.Table.php:183
Table->select()
2: class.cObject.php:479
cObject->fetchAttrsFromTable_()
3: DashboardPreset.php:29
DashboardPreset->__construct(integer '5')
4: common_func.php3:3148
objectMaker(string 'DashboardPreset', integer '5', boolean false, NULL null)
5: common_func.php3:3157
objectMakerEx(string 'DashboardPreset', integer '5')
6: UserAdmin.php:205
UserAdmin->getDashboardCustomPreset()
7: Favorites.php:100
Favorites::renderFavoritesDropDown(boolean true)
8: class.Form.php:286
Form->assign()
9: AutoInstallerReleasesList.php:123
AutoInstallerReleasesListForm->assign(NULL null)
10: server.autoinstaller.php:89
plesk__server__autoinstaller->accessItem(string 'GET', NULL null)
11: UIPointer.php:596
UIPointer->access(string 'GET')
12: plesk.php:38