> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.simplyprint.io/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# SimplyPrint won't load: blank screen, spinner, or stuck on login

Use this if you're seeing any of these in SimplyPrint:

- A **blank or blue screen** that never turns into the panel
- An **endless loading spinner** that just keeps going
- **Stuck on the login page** with no sign-in form
- **"Loading…" forever** or a card that never appears
- A specific feature missing (payments, live printer status, Cloud Slicer, chat)

Almost every load problem on SimplyPrint comes from something between your browser and our servers, not from SimplyPrint itself. Work the list below in order. Step 1 or 2 fixes most cases.

## Quick fixes (try in order)

1. **Hard refresh.** `Ctrl + Shift + R` on Windows/Linux, `Cmd + Shift + R` on Mac. Fixes most "stale cache" cases.
2. **Try incognito with extensions OFF.** In Chrome, extensions are NOT automatically disabled in incognito - you must check.
3. **Try a different browser.** Chrome, Edge, and Firefox are the three we tune for.
4. **Try on your phone.** If your phone works on the same account, the problem is local to your computer.
5. **Send a debug report.** [User settings → Local preferences → Debug & support](https://simplyprint.io/panel/user_settings/local).

## Pick the article that matches your symptom

| What you're seeing | Read this |
|---|---|
| Blank or blue screen, panel never loads, after a hard refresh | [Browser extensions blocking SimplyPrint](https://help.simplyprint.io/en/article/browser-extensions-blocking-simplyprint-ublock-privacy-badger-ad-blockers-19369uy/) |
| Spinner spins forever, panel loads partially, old data shown | [Stuck on loading? Clear cache, try incognito, or another browser](https://help.simplyprint.io/en/article/stuck-on-loading-clear-cache-try-incognito-or-another-browser-1v547e7/) |
| Live printer status doesn't show, "Connecting…" never finishes, Cloud Slicer hangs | [WebSocket, firewall, or Cloudflare blocking SimplyPrint](https://help.simplyprint.io/en/article/websocket-firewall-or-cloudflare-blocking-simplyprint-live-data-cloud-slicer-1thiedb/) |
| Payment / Add card form is blank or stuck, "ERR_INTERNET_DISCONNECTED" on `https://js.stripe.com/v3/` | [Can't add card or pay? Stripe payment form not loading](https://help.simplyprint.io/en/article/cant-add-card-or-pay-stripe-payment-form-not-loading-jsstripecomv3-blocked-10g4fbq/) |
| Link looks broken when opened on a phone | See the on-phone section below |
| You've tried everything and still need help | [Send a debug report to SimplyPrint support](https://help.simplyprint.io/en/article/send-a-debug-report-to-simplyprint-support-when-nothing-else-works-azsvh0/) |

## On a phone? Use a real browser.
QR code scanner apps often open links in their own in-app browser, which breaks most modern web apps including SimplyPrint. Tap the menu (three dots or globe icon) and choose "Open in Safari" or "Open in Chrome". On modern iPhones and Android phones the native camera app reads QR codes - you don't need a third-party app.

Same applies to in-app browsers inside Facebook, Instagram, and Messenger.

## Is it actually SimplyPrint that's down?
Rare, but worth a 5-second check before assuming it's you:

- [SimplyPrint status page](https://status.simplyprint.io/)
- [Cloudflare status](https://www.cloudflarestatus.com/) (or [downdetector](https://downdetector.com/status/cloudflare/))
- [Third-party services we depend on](https://03rn8k9ib2gwifde.incidenthub.net/)
- [SimplyPrint Discord #support](https://simplyprint.io/discord) - if it's widespread, someone has already posted

## Related, but a different problem
- Forgot your password? See [How do I reset my password?](https://help.simplyprint.io/en/article/how-do-i-reset-my-password-w2fpmy/) - it's not a load issue.
- Panel loads fine but a specific printer is offline? See [Why is my printer offline?](https://help.simplyprint.io/en/article/why-is-my-printer-offline-jzctwn/).
- SSO / school login error like "FirstName not set"? See [SSO troubleshooting](https://help.simplyprint.io/en/article/sso-troubleshooting-how-to-fix-errors-like-firstname-not-set-pgdbiz/).