Hello, regarding the trading issue of 'KMNO' currency, there were indeed transaction failures due to underlying technical problems of the DEX service provider. This issue has now been resolved, and you can trade normally. The purchase failures for ai16z, TROLL, and POPCAT tokens were mainly due to price fluctuations and slippage settings. To improve the success rate of transactions, we recommend that you appropriately adjust the slippage settings and gas fees during trading. Slippage refers to the price fluctuation range you are willing to accept, and appropriately increasing the slippage can help you complete transactions more smoothly during significant price fluctuations. If you have any questions or need further assistance, please contact us through: www.bmwweb.net/zh-CN/chat. -VL