Discord seems not to allow bots which owners don't have Discord Nitro to send large attachments, while the bot can still receive and process them from users who do have Discord Nitro.
Therefore, a separate check and message should be added, informing the user of such limitations, and try to possibly compress the attachments before sending, in order to allow the user to use the command regardless of if the owner of the bot has Nitro or not.
Discord seems not to allow bots which owners don't have Discord Nitro to send large attachments, while the bot can still receive and process them from users who do have Discord Nitro.
Therefore, a separate check and message should be added, informing the user of such limitations, and try to possibly compress the attachments before sending, in order to allow the user to use the command regardless of if the owner of the bot has Nitro or not.