The "Send Request Twice" error is one that many Rocket League Sideswipe players have run into after the official launch of the game.
Of course, with new games being released, that means many players will encounter bugs that developers have missed.
Rocket League Sideswipe Login Not Working: How to Fix
There are a few simple steps to fix this.
1. Clear cache and cookies through web browser
Whether you're on iOS or Android, first you must clear your web browser cache. This can be done on Safari or Google Chrome.
In the browser's settings, the player should go to the Privacy menu and then Clear Browsing Data.
When clearing this, make sure you've selected Cookies, Site Data and Cached Files and Images.
2. Clear Rocket League Sideswipe game cache
If the issue continues to happen, you should try clearing the game's cache.
This can be accessed under the App settings. Under App Info, select Storage and Clear Data.
3. Uninstall and reinstall Rocket League Sideswipe
This way to fix it should be the players last ditch effort.
To uninstall Rocket League Sideswipe, just go to your phone's App Store or Google Play Store, navigate to the game's page and click Uninstall.
From there, you can wait a few minutes for it to fully uninstall, then finally reinstall the game.