Why can't I send Crypto on Coinbase?

Could you please elaborate on the reasons why I'm unable to send cryptocurrency through Coinbase? I've been trying for quite some time but it seems to be unsuccessful. Could it be due to some technical issues with the platform? Or is there a specific limit that I've reached? I'm also wondering if there are any maintenance works being carried out that might be affecting the sending process. Additionally, could it be a problem with my account settings or verification status? I'm really looking forward to getting this resolved as soon as possible. Thank you for your assistance.