Hay this is adelina smith, we offer free technical support to people who are facing technical issues. f you're wondering "How to Change a Cash App Routing Number," you can do so by following a few simple steps." So, we've given you the best solution to get rid of this error quickly and easily.you should check the proper guide from the official help canter where you will see the best solution and guidance regarding the same. https://www.cash-app-helps.com/blog/how-to-change-routing-number-on-cash-app/