Mysql error

Hi,
Thanks for this great work . I am getting strange mysql errors after installing E-commerce-5.x-3 dev version.

user warning: MySQL server has gone away query: UPDATE cache_menu SET data = 'a:4:{s:10:\"path index\";a:210:{s:17:\"admin/build/block\";s:2:\"14\";s:22:\"admin/build/block/list\";i:-2;s:27:\"admin/build/block/configure\";i:-3;s:24:\"admin/build/block/delete\";i:-4;s:21:\"admin/build/block/add\";i:-5;s:30:\"admin/build/block/list/garland\";i:-6;s:19:\"admin/build/contact\";s:2:\"68\";s:24:\"admin/build/contact/list\";i:-8;s:23:\"admin/build/contact/add\";i:-9;s:24:\"admin/build/contact/edit\";i:-10;s:26:\"admin/build/contact/delete\";i:-11;s:28:\"admin/build/contact/settings\";i:-12;s:7:\"contact\";s:2:\"69\";s:8:\"currency\";s:2:\"90\";s:23:\"admin/settings/currency\";s:2:\"91\";s:24:\"admin/ecsettings/address\";s:2:\"60\";s:4:\"cart\";s:2:\"46\";s:13:\"cart/checkou in I:\www\projects\hosting\includes\database.mysql.inc on line 172.

user warning: Lost connection to MySQL server during query query: UPDATE cache_menu SET data = 'a:4:{s:10:\"path index\";a:215:{s:17:\"admin/build/block\";s:2:\"14\";s:22:\"admin/build/block/list\";i:-2;s:27:\"admin/build/block/configure\";i:-3;s:24:\"admin/build/block/delete\";i:-4;s:21:\"admin/build/block/add\";i:-5;s:32:\"admin/build/block/list/chameleon\";i:-6;s:33:\"admin/build/block/list/pushbutton\";i:-7;s:30:\"admin/build/block/list/garland\";i:-8;s:33:\"admin/build/block/list/bluemarine\";i:-9;s:29:\"admin/build/block/list/marvin\";i:-10;s:31:\"admin/build/block/list/minnelli\";i:-11;s:19:\"admin/build/contact\";s:2:\"68\";s:24:\"admin/build/contact/list\";i:-13;s:23:\"admin/build/contact/add\";i:-14;s:24:\"admin/build/contact/edit\";i:-15;s:26:\"admin/build/contact/delete\";i:-16;s:28:\"admin/build/contact/settings\ in I:\www\projects\hosting\includes\database.mysql.inc on line 172.

If I remove e-commerce there were no errors. I couldn't figure out where was the problem.My XAMPP version is 1.5.5 (Apache 2.2.3 + MySQL 5.0.27 + PHP 4.4.4 ). Can any one direct me to right point?
Regards,
Bs.