Don't panic! First, check that your internet connection is stable and that you have cleared your browser's cache. Depending on the browser, the technique is different. Here is a link to help you: Refresh Your Cache.
If the problem persists, contact us via the contact form with as many details as possible: the step where you're blocked, a screenshot of the error message, the source of your photos...
All details are important to help us resolve your issue ✅