That's the first thing I was thinking when I read this. Solana has gas fees so you probably don't have enough money to cover the gas. That is why WAX and HIVE are so superior when it comes to NFTs. No gas fees, sure, you need resources, but if you are just buying one NFT they usually cover those costs for you. That or you already have stuff staked anyway to cover the tx fees. I have one NFT I bought on BSC, but everything else is either WAX or HIVE.