There are common errors for project owners when create, update the presale on Solana:

IntrusctionsError

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IntrusctionsError - How to fix: Click "Confirm" on Solana wallet again and try many times. It will take around 5-10 min to try, please be patient.

Finalize Presale

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Finalize Presale - How to fix: Deposit more SOL ( 1,2 SOL) and try "Confirm" again many times. It will take around 5-10 min to try, please be patient.

Signature Error

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Signature Error - How to fix: Try to Confirm again many times. It will take around 5-10 min to try, please be patient.

Already Created Presale Error

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Already Created Presale Error - How to fix: Cancel old presale pool and transfer tokens to new wallet then create new presale again.