Hi everyone i am facing a problem with quotation, when i create a new quotation and i confirm it, automatically an email about the cancellation of the quotation is sent to the client, knowing that i don't have any automation nor an action that i am aware of that's related to quotation and also the status of my quotation doesn't change to cancel, moreover when i want to validate the delivery it doesn't work.

i don't know what could be the reason this happening, any suggestion?

NB:  I am using odoo online.