When you try to change something in "1C Catalog - Offers (remainders)", an error occurs. What does she mean?

Question

1C-Bitrix

[Bitrix\Main\IO\FileOpenException]
Cannot open the file '/var/www/html/sitemap_iblock_14.xml'. (120)
/var/www/www/bitrix/modules/main/lib/io/file.php:31
#0: Bitrix\Main\IO\File->open(string)
/var/www/www/bitrix/ modules/seo/lib/sitemapfile.php:302
#1: Bitrix\Seo\SitemapFile->removeEntry(string)
/var/www/www/bitrix/modules/seo/lib/sitemapiblock.php:399
#2: Bitrix\ Seo\SitemapIblock::actionUpdate(array, boolean)
/var/www/www/bitrix/modules/seo/lib/sitemapiblock.php:330
#3: Bitrix\Seo\SitemapIblock::__callStatic(string, array)
/var/ www/www/bitrix/modules/main/classes/general/module.php:490
#4: ExecuteModuleEventEx(array, array)
/var/www/www/bitrix/modules/iblock/classes/general/iblocksection.php:1443
#5: CAllIBlockSection->Update(integer, array, boolean, boolean, boolean)
/var/www/www/bitrix/modules /iblock/admin/iblock_section_edit.php:330
#6: require(string)
/var/www/www/bitrix/admin/iblock_section_edit.php:1

Answer 1

Try this check:
This error usually occurs when there is not enough permission to write files.

Answer 2

int similar_text ( string $first , string $second [, float &$percent ] )

php.net/manual/ru/function.similar-text.php
and
How to select rows by similarity percentage in mysql?

Answer 3

It is more correct when writing a post to bind several tags to it manually or automatically. And display similar posts by matching tags.