# Can't upload mod file in Dev Portal: UP-01-500

**URL:** <https://forums.unrealengine.com/t/cant-upload-mod-file-in-dev-portal-up-01-500/475518>\
**Category:** Modding\
**Tags:** error, mod, unreal-engine, question\
**Created:** [December 6, 2020, 10:13pm UTC](https://forums.unrealengine.com/t/cant-upload-mod-file-in-dev-portal-up-01-500/475518 "2020-12-06T22:13:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![anonymous\_user\_69810e7f1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_69810e7f1](https://forums.unrealengine.com/u/anonymous_user_69810e7f1)\
**Post date:** [December 6, 2020, 10:13pm UTC](https://forums.unrealengine.com/t/cant-upload-mod-file-in-dev-portal-up-01-500/475518/1 "2020-12-06T22:13:58Z")

</div>

I am unable to upload file for a mod in the dev portal for Total War Troy. I have downloaded the Assembly Kit for the game, and 2FA is also enabled. I click on the button “Submit a mod” in the Epic Launcher, it opens a web page in my web browser, I click on Files and then “Choose files to upload”, and then I get an UP-01-500 error code. And apparently there is nobody in all of google search results who had this error. 3rd screenshot is a pop-up.

This has been happening for 2 days now.

I disabled my ad block on the dev portal website, and it didn’t help. I ran the troubleshooting utility of the Epic Games Launcher, and all was green.

I joined screenshots of my steps.

I was sent here by Epic Games Player Support

 ![324133-epic-fail-1.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/8/2/e/82ed61c6e348b45a3d581851ba85c5090073a84c.jpeg)

 ![324134-epic-fail-2.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/8/9/6/896233b27c4fe0ce00891e07d08a6b9df1c6439a.jpeg)

 ![324135-epic-fail-3.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/0/c/3/0c354cfcf932409bd29194562927e8d814e98f7e.png)