Hi @Varg. Thanks for reporting this!
I guess this is about https://glk.wikipedia.org/wiki/ویکی‌پدیا:بارگذاری
Also, the task in the "Blocked By" field is inaccessible to me due to access restrictions...

For such configuration changes, local consensus is required. Could you discuss the matter on the Village pump page of your wiki to confirm that this change is wanted by the community, and paste the link to the discussion here?
For more information about how to request these kinds of changes, please see https://meta.wikimedia.org/wiki/Requesting_wiki_configuration_changes and feel free to forward that link to others who may want similar changes made in the future. Thanks!

For your interest, technically, upload settings are defined in the code repository in https://git.wikimedia.org/blob/operations%2Fmediawiki-config.git/079a4edf39b7df76913ef9fd7cfa0b70f7d9e9b8/wmf-config%2FInitialiseSettings.php

For general information on how to file tasks in Phabricator, please see https://www.mediawiki.org/wiki/How_to_report_a_bug

In T111335#1601938, @Aklapper wrote:

For such configuration changes, local consensus is required. Could you discuss the matter on the Village pump page of your wiki to confirm that this change is wanted by the community, and paste the link to the discussion here?

Hi, we discussed this matter and our active users put their vote to want this access:
Allow non-admins to upload files in Gilaki wikipedia

Why can't you use https://commons.wikimedia.org/wiki/Special:UploadWizard?uselang=glk ?

Local upload doesn't work until you put some copyright tags in https://glk.wikipedia.org/wiki/MediaWiki:Licenses ; see also https://wikimediafoundation.org/wiki/Resolution:Licensing_policy .

In T111335#1613981, @Nemo_bis wrote:

Why can't you use https://commons.wikimedia.org/wiki/Special:UploadWizard?uselang=glk ?

Local upload doesn't work until you put some copyright tags in https://glk.wikipedia.org/wiki/MediaWiki:Licenses ; see also https://wikimediafoundation.org/wiki/Resolution:Licensing_policy .

How we could translate this to Gilaki?

@Varg You don't need to - files uploaded to Commons can be used on all sites. However, I'm prepared to do a patch for this, but it should only be deployed if you have local license tags on https://glk.wikipedia.org/wiki/%D9%85%D8%AF%DB%8C%D8%A7%D9%88%DB%8C%DA%A9%DB%8C:Licenses - Please let me know once this has been done.

In T111335#1652849, @Mdann52 wrote:

@Varg You don't need to - files uploaded to Commons can be used on all sites. [...]

I don't understand. Why shouldn't it be translated?

In T111335#1636323, @Varg wrote:

How we could translate this to Gilaki?

You should upload a translated version of File:Licensing_tutorial_en.svg to https://commons.wikimedia.org/wiki/File:Licensing_tutorial_glk.svg. See https://meta.wikimedia.org/wiki/Licensing_tutorial for additional details.

In T111335#1652866, @Glaisher wrote:

In T111335#1652849, @Mdann52 wrote:

@Varg You don't need to - files uploaded to Commons can be used on all sites. [...]

I don't understand. Why shouldn't it be translated?

Apologies, I misunderstood. @Varg, this should be done at https://translatewiki.net/w/i.php?title=Special:Translate&group=ext-uploadwizard&filter=&action=translate&language=glk

In T111335#1636323, @Varg wrote:

How we could translate this to Gilaki?

You should upload a translated version of File:Licensing_tutorial_en.svg to https://commons.wikimedia.org/wiki/File:Licensing_tutorial_glk.svg. See https://meta.wikimedia.org/wiki/Licensing_tutorial for additional details.

Ah nevermind, the issue is a local incorrect JavaScript (presumably copied from the English Wikipedia) which overrides $wgUploadNavigationUrl . Please a sysop or global editinterface or steward fix it.

I've removed it but I think I would prefer it to be linked directly to UploadWizard?uselang=glk.

Would $lang global in wgUploadNavigationUrl for commonsuploads wikis work reliably for InitialiseSettings.php? @Krenair might know perhaps?

In T111335#1696708, @Glaisher wrote:

Would $lang global in wgUploadNavigationUrl for commonsuploads wikis work reliably for InitialiseSettings.php? @Krenair might know perhaps?

I don't think it would in all cases, but generally yes. It should for this.

Change 243920 had a related patch set uploaded (by Glaisher):
Set $wgUploadNavigationUrl to use uselang=$lang for commonsuploads wikis by default

https://gerrit.wikimedia.org/r/243920

Change 243920 merged by jenkins-bot:
Set $wgUploadNavigationUrl to use uselang=$lang for commonsuploads wikis by default

https://gerrit.wikimedia.org/r/243920

The sidebar upload link has been changed now and closing this per T111335#1696369

$lang hasn't been initialized and assigned yet when InitialiseSettings.php is parsed.

Undefined variable: lang in /srv/mediawiki/wmf-config/InitialiseSettings.php on line 1209

Change 245945 had a related patch set uploaded (by Glaisher):
Set $wgUploadNavigationUrl to use uselang=$lang for commonsuploads wikis by default

https://gerrit.wikimedia.org/r/245945

Change 245945 merged by jenkins-bot:
Set $wgUploadNavigationUrl to use uselang=$lang for commonsuploads wikis by default

https://gerrit.wikimedia.org/r/245945

Language selection should be and already is performed by UniversalLanguageSelector... There is no evidence that it's failing for any of the users of the commonsuploads wikis.

Users in our wiki (glk.wikipedia.org) could not upload files yet. How I should do?