> For the complete documentation index, see [llms.txt](https://docs.friendly.market/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.friendly.market/products/nft-marketplace/faqs.md).

# FAQ's

### **Why is it stuck in 'Waiting for transaction signature'?**

![](/files/e1EYD03VjrKy5Gn81uDd)

This could be due to many reasons:

* **Insufficient balance**: Make sure you have enough CSPR to pay for gas fees (around 3CSPR to 5CSPR)
* **Casper Signer**: If you are using Casper Signer, make sure the extension is active and is working. Try refreshing the page and/or restarting the browser and trying again.

### **What does User error: 65533 mean?**

![](/files/OBOU5oKx55ysTxT5BtbY)

The smart contract has not been approved to spend your tokens. Make sure you approve the smart contract first.

### **The Transaction Link Says Not Found**

![](/files/s2iaJDMPY6fJK8NkmOHo)

You need to wait for the transaction to be picked up by the nodes and included in the blockchain. This usually takes around 30 secs.