I fail to resubscribe i get error (Error code:-81657)

Welcome to the Community space, @kaigalula. 

I'm here to add add more details that will help you in renewing your QuickBooks Online (QBO) subscription,

The error code -81657 is related to issues with your QBO account or subscription.

Here are some troubleshooting steps you can perform to resolve the error:

Log in to your account using an incognito browser. Private browser prevents saving cache and cookies that sometimes cause errors when running frequently visited websites. Here are the useful shortcut keys you can use to access one:

• Ctrl+ Shift + N for Google Chrome 
• Ctrl + Shift + P for Mozilla Firefox and Microsoft Edge 
• Command + Shift + N for Safari 

If it works go back to your regular browser and clear its cache. Clearing the cache or cookies is the best way to start fresh and ensure optimal performance. Otherwise, using other supported browsers can be a good alternative too.

I'm also adding this article on managing your billing, payment, and subscription information directly from QuickBooks Online: Update billing, payment, and subscription info in QuickBooks Online.

If the issue persists, I recommend contacting our Phone Support Team. This way, they can investigate this matter further and create an investigation ticket if other users experiencing the same error. 

In case you need further assistance with this error message or any QuickBooks-related. You can also mention me in the comment section below.