Hello,

Recently an update appear to language, when we try to update it appear an error unzip failed.

How can we fix this?

You must upload &  unzip manually, osclass was not able to do it

Same problem!!! Impossible upgrade or install language after removing.

How to manual install language??? After unzipping language file content to /oc-content/languages/xx-XX its stil not present on dashbuard. Dashbuard showing on top "1 Language update", but language is removed.

After enabling debug, no errors?

OsClass 8.1.1
PHP 7.4.3
Zip version    1.15.6
Libzip headers version    1.5.1
Libzip library version    1.5.1

P.S. maybe its same error on utils.php when i try make web site backup ===> PHP Warning:  ZipArchive::close(): Can't open file: Permission denied in /var/www/html/domain.xx/oc-includes/osclass/utils.php on line 1413, referer: https://www.domain.xx/oc-admin/index.php?page=tools&action=backup

=========== Resolved =====

Its bad archive of language zip file (20230411_lang_osclass_ru_RU_8.1.1.zip). After downloading manually language file, unzip and zip again the installation success!

Fixed, for some reason it is zipped by osclass and cannot be unzipped (not always).
function create_zip_archive

  function create_zip_archive($zip_path, $dir_path, $dir_name) {
    $zip = new ZipArchive;
    $zip->open($zip_path, ZipArchive::CREATE | ZipArchive::OVERWRITE);

    if ($handle = opendir($dir_path)) {
      while (false !== ($file = readdir($handle))) {
        if ($file != "." && $file != "..") {
          $zip->addFile($dir_path . '/' . $file, $dir_name . '/' . $file);
        }
      }
     
      closedir($handle);
    }

    return $zip->close();
  }
do not see problem here... :/

The system constantly indicates that the language is not updated. I tried to update, tried uninstalling and reinstalling. Anyway shows that there is an update. Where to look for error?

There can be incorrect version in index.php of language file.
Take a look an max it to osclass version.

Yes, in file index.php wrong version ",'version'         => '8.0.2'" it could by ",'version'         => '8.1.1'".

After correcting version in index.php file same problem exist.

By "same problem" you mean that you see update available?
Check for updates again to refresh toolbars.

Refreshed webpage, opened in other browser, checked for updates. Anyway shows that there is an update for language ru_RU.

Right, you must update _t_locale table as well to reflect correct version.
Then it should be finally fine.

After version adjustment in the database, everything is fine now, thank you