Bitrix, error when exchanging with 1C, how to solve?

Question

1C-Bitrix

Here is the error:
Host: 82.202.163.184:80
Date: 2019-08-05 03:05:02
Module: askaron.pro1c
Exchange step response:
[Bitrix\Main\DB\SqlQueryException]
Mysql query error: (2006) MySQL server has gone away (400)
DELETE from b_iblock_18_index WHERE ELEMENT_ID = 250145
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string)
/home/bitrix/www/bitrix /modules/iblock/lib/propertyindex/storage.php:187
#2: Bitrix\Iblock\PropertyIndex\Storage->deleteIndexElement(integer)
/home/bitrix/www/bitrix/modules/iblock/lib/propertyindex/indexer.php:241
#3: Bitrix\Iblock\PropertyIndex\Indexer->deleteElement(integer)
/home/bitrix/www/bitrix/modules/iblock /lib/propertyindex/manager.php:345
#4: Bitrix\Iblock\PropertyIndex\Manager::elementIndexing(object, integer)
/home/bitrix/www/bitrix/modules/iblock/lib/propertyindex/manager.php:329
#5: Bitrix\Iblock\PropertyIndex\Manager::runDeferredIndexing(integer)
/home/bitrix/www/bitrix/modules/iblock/classes/general/cml2.php:2594
#6: CIBlockCMLImport->ImportElements(integer, integer)
/home/bitrix/www/bitrix/components/bitrix/catalog.import.1c/component.php:493
#7: include(string)
/home/bitrix/www/bitrix/modules/main/classes/general/component.php:594
#8: CBitrixComponent->__includeComponent()
/home/bitrix/www/bitrix/modules/main/classes/general/component. php:102
#9: CBitrixComponent->executeComponent()
/home/bitrix/www/bitrix/modules/main/classes/general/component.php:638
#10: CBitrixComponent->includeComponent(string, array, NULL)
/home /bitrix/www/bitrix/modules/main/classes/general/main.php:1038
#11: CAllMain->IncludeComponent(string, string, array)
/home/bitrix/www/bitrix/modules/sale/admin/1c_exchange .php:90
#12: require_once(string)
/home/bitrix/www/bitrix/admin/1c_exchange.php:2
----------
Host: 82.202.163.184:80
Date: 2019-08-05 03:05:02
Module: main
MySql Query Error: SELECT USER_ID FROM b_pull_watch WHERE TAG = 'ASKARON_PRO1C_LIVE_LOG' [[2006] MySQL server has gone away]
CDatabaseMysql::Query < CAllPullWatch::AddToStack < CAskaronPro1C ::OnEndBufferContentHandler < ExecuteModuleEventEx < CAllMain::EndBufferContent
/home/bitrix/www/bitrix/modules/pull/classes/general/pull_watch.php:211
/home/bitrix/www/bitrix/modules/askaron.pro1c/include.php :725
/home/bitrix/www/bitrix/modules/main/classes/general/module.php:490
/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3191
---- ------
in 1s writes this:
Uploaded goods: 6 128
Uploaded pictures: 14 273
Uploaded files: 0
Offers uploaded: 6 128
Failed to get the current status of the exchange process. Exchange data sent but not uploaded.
Exchange failed
Unloading of goods completed with errors!!!

Answer 1

Google error
First link
If it doesn't help, then:
You use the askaron.pro1c module to exchange on the side of the site . This is a partner module. Try asking your partner's help desk.