If you are minting from your mobile phone then please open minting site from your metamask browser.

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If it keeps saying "Waiting for transaction" after minting then check your wallet or your opensea profile, your NFTs may already be minted.

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If "Internal JSON RPC" error appears on your mobile phone while minting then click on Gas fees and change network to market.

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If transaction is stuck at pending then click on gas fee and change network to market.