> For the complete documentation index, see [llms.txt](https://docs.foodomaa.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.foodomaa.com/faqs/white-screen-issues.md).

# White Screen Issues

The Customer and the Delivery Application provided with Foodomaa is a Progressive Web Application.\
It uses React JS to power the frontend. React JS works the Single Page Application concept.\
\
A Single Page Application loads all the JavaScripts and then performs tasks like initializing the website, making API calls, routing, etc.\
\
If the JavaScript executing flow is obstructed because of a bad configuration, the application crashes and hence leads to a White-Screen.

## What leads to a bad config and website to crash?

### 1. No translations are set in Admin

Goto `Admin > Extras > Translations` and check if you have at least one translation in place.

### 2. The translation are in place, but is no translation is marked as default.

Go to `Admin > Extras > Translations` and check if at least one transaction is marked as default.\
(Click on the CheckMark button on a translation to mark it as a default translation)

### 3. Removed Firebase Web Push Certificate

Go to `Admin > Settings > Push Notifications > Firebase Web Push Certificate` and check whether you have removed the FIrebase Web Push Certificate.\
Even if you do not intent to use Firebase push notifications, this field is not meant to be removed.\
\
If you have removed it by mistake, insert the following, and save your settings.\
\&#xNAN;*`BH5L8XrGsNpki5uF1008FbZzgKKZN-NmhOwdWL5Lxh5r3nsgZ6N_Dged1IYXXCCJwpnrXzs52G_v3vM_naO0hxY`*

Then go to `Admin > Settings > Cache Settings > Force Clear Cache`

### 4. API EndPoints not configured correctly

If you use a www version of your website during the installation, you might face this issue.\
Make sure you always use a non-www version of the URL. \
Go to `Admin > Settings > Fix Update Issues`

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