You will not be able to prepare a submission if you did not submit your Intent to Bid by the outlined deadline. The deadline to submit your Intent to Bid can be found on the project page under Important Events.
If the deadline has passed, you receive the following message, "You cannot prepare a submission because you did not submit your Intent to by [...]".
Bonfire Support doesn't have permission to extend, edit, or manipulate any project schedules on the buying organization's behalf. We recommend reaching out to the Project Owner directly (see How do I contact the Project Owner?).