Support
Quick fixes before you mail us—we answer faster when device details are included.
DJB88 Tennis not loading (blank / spinner)
- Confirm mobile data or Wi‑Fi works in another app.
- Force-close the app and reopen.
- Clear cache; if unresolved, clear app storage once (creates fresh WebView data).
- Try the browser build: tennis.hmdevlopmentbd.site
Internet / timeouts
Switch networks, reboot the router when on Wi‑Fi, disable aggressive VPN/firewall temporarily, retry after a minute if the CDN is unreachable.
Notifications missing or unwanted
- Android 13+: ensure permission granted in Settings if you tapped “Allow” previously.
- Disable alerts per app via Settings → Notifications.
- Uninstall reinstall resets notification tokens entirely.
Cache & data
Clearing storage removes offline Web caches and resets local progression if the title stored it purely on-device. Screenshots beforehand if you rely on ephemeral scores.