Database error

Invalid query:

INSERT INTO T_MV_DATA (tree_id, mv_registry_id, data)
			SELECT tr.id AS tree_id, 300305 AS mv_registry_id, CONCAT_WS(',', CAST(SUM(CASE WHEN tc.entity_type_id <> 1 THEN 1 ELSE 0 END) AS CHAR), CAST(SUM(CASE WHEN tc.entity_type_id = 1 THEN 1 ELSE 0 END) AS CHAR))
			   FROM T_TREE AS tr
			        LEFT JOIN TMP_MATCHING_CHILDREN AS tc ON tc.root_id = tr.root_id AND tc.left_key BETWEEN tr.left_key AND tr.right_key AND tc.level > tr.level
			  WHERE tr.root_id = 1
			    AND tr.entity_type_id = 1
			  GROUP BY tr.id

Error writing file '/tmp/MYfd=232' (OS errno 28 - No space left on device)

at MySQLiDatabase->executeQueryStr("INSERT INTO T_MV_DATA (tree_id, mv_registry_id, data)
			SELECT ...") [/var/www/metportal/data/www/metportal.com.ua/engine/classes/bl/cache/builders/CategoryStatsCacheBuilder.php:138])

at CategoryStatsCacheBuilder->cachePostBuild() [/var/www/metportal/data/www/metportal.com.ua/engine/classes/bl/cache/AbstractDBCacheBuilder.php:65])

at AbstractDBCacheBuilder->buildCache() [/var/www/metportal/data/www/metportal.com.ua/engine/classes/bl/cache/AbstractCacheBuilder.php:154])

at AbstractCacheBuilder->validateCache() [/var/www/metportal/data/www/metportal.com.ua/engine/classes/bl/cache/AbstractDBCacheBuilder.php:38])

at AbstractDBCacheBuilder->mapCachedData(Object(MySQLQuery)) [/var/www/metportal/data/www/metportal.com.ua/engine/classes/bl/content/filters/ArticleCacheMapperFilter.php:14])

at ArticleCacheMapperFilter->addFilterCondition(Object(MySQLQuery)) [/var/www/metportal/data/www/metportal.com.ua/engine/classes/db/CompositeQueryFilter.php:51])

at CompositeQueryFilter->addFilterCondition(Object(MySQLQuery)) [/var/www/metportal/data/www/metportal.com.ua/engine/classes/bl/content/DatabaseTree.php:1259])

at DatabaseTree->createEnumPart(Object(MySQLiDatabase), "T_TREE AS _ti
			 JOIN T_TREE AS t ON t.root_id = _ti.root_id AN...", "JOIN T_TREE AS __t ON __t.id = CASE WHEN t.entity_type_id = 0 TH...", "_ti.id IN (2)", Object(CompositeQueryFilter)) [/var/www/metportal/data/www/metportal.com.ua/engine/classes/bl/content/DatabaseTree.php:1189])

at DatabaseTree->enumChildrenQuery(2, 1, "3", 1, Object(CompositeQueryFilter)) [/var/www/metportal/data/www/metportal.com.ua/engine/classes/bl/content/DatabaseTree.php:976])

at DatabaseTree->enumChildren(2, 1, "3", "TMP_TREEITEMS_fd27d5e4e843b919dbc596778ee97a0d", 1, Object(CompositeQueryFilter)) [/var/www/metportal/data/www/metportal.com.ua/site/classes/replacements/CategoryProvider.php:26])

at CategoryProvider->getCategories(2, 1, "3", False, Object(CompositeQueryFilter), Object(CompositeQueryFilter)) [/var/www/metportal/data/www/metportal.com.ua/site/classes/modules/CategoryUpdates.php:65])

at CategoryUpdates->fetchTemplateDataImpl(Object(ModuleContext)) [/var/www/metportal/data/www/metportal.com.ua/engine/classes/modules/Module.php:578])

at Module->fetchTemplateData(Object(ModuleContext)) [/var/www/metportal/data/www/metportal.com.ua/engine/classes/modules/Module.php:560])

at Module->bindDisplayContext(Object(ModuleContext), 1) [/var/www/metportal/data/www/metportal.com.ua/engine/classes/modules/Module.php:550])

at Module->display(Object(ModuleContext), 1) [/var/www/metportal/data/www/metportal.com.ua/engine/classes/modules/Module.php:432])

at Module->displayCache(Object(ModuleContext), 1) [/var/www/metportal/data/www/metportal.com.ua/engine/classes/Frame.php:93])

at Frame->displayAll(1) [/var/www/metportal/data/www/metportal.com.ua/engine/classes/View.php:559])

at View->display("catalog", 1) [/var/www/metportal/data/www/metportal.com.ua/site/templates/default/index.php:51])

at include_once("/var/www/metportal/data/www/metportal.com.ua/site/templates/defa...") [/var/www/metportal/data/www/metportal.com.ua/engine/inc/main.inc.php:65])

at include_once("/var/www/metportal/data/www/metportal.com.ua/engine/inc/main.inc...") [/var/www/metportal/data/www/metportal.com.ua/index.php:225])