First, check your Stripe account is fully set up
Stripe requires identity verification and bank details before they'll process payments. If anything's incomplete on their end, checkout won't work.
Then, refresh your Stripe connection
Once your Stripe account is verified and ready, disconnect and reconnect it to Skillstore:
Open Settings and click Payments
Click Disconnect Stripe
Click Connect with Stripe to reconnect.
This refreshes the connection and should get your payments flowing.
For more help, contact Stripe directly.