SKULabs requires either 25MB or 50MB of what browsers call "site data". The calculation for how much a single website is allowed to use is complicated but depends on the available space on the device and the usage by other websites including advertisements among other factors.
Make sure to follow these steps one-by-one to help resolve potential problems with your device's disk space availability.
Check that your device is supported and up to date:
Click the Menu in the top right corner, Hover over help, then click About Chrome. Updates should occur automatically.
Click the Menu in the top right corner, click About Firefox. Updates should occur automatically.
Check the app store for updates or visit https://support.apple.com/safari
If you can access the app, but are having trouble finding certain data in your account try using in-app troubleshooting "reload caches" option to recalculate account state, resync your browser database with your account, and refresh all instances of SKULabs you have running in the current browser/app.
Clear your browser's cache and site data (including cookies).
Firefox users: Check your browser history settings and make sure that "Never remember history" or "Always use private browsing mode" are disabled. These options can limit the available amount of browser cache necessary for Firefox to run SKULabs.
Create a new browser profile:
Firefox users: Disable "Enhanced Tracking Potection" mode for SKULabs.
Remove any large files you've recently downloaded then empty the recycle bin to reclaim the space. Ensure you have at least a few gigabytes of space available on your primary storage device.
If you still can't sign-in after completing the last step, restart the device to be completely sure the space has been reclaimed.
For app users, try visiting app.skulabs.com, previous.skulabs.com, or next.skulabs.com on the Google Chrome or Safari app.
Occasionally, an extension or other data can interfere with our use of storage space on your device. Most extensions are disabled when private browsing, so try your browser's "Private" or "Incognito" mode (even on your mobile device).
Temporarily try switching to another browser to help determine if the issue is isolated to your current browser. Many users report success with this and they can usually switch back to their preferred browser after a short amount of time.
If you're still having issues, use the orange chat icon to start a chat with us and we'll be happy to help further.