You don't need to add your resume in your profile everything a client will need to know it's already in your profile, your education, employment history, overview, skills and a profile picture.
Your profile looks good just take few more tests related to your skills add few portfolio. That's it.
Could you please clarify where you are getting this error? It looks like logged back into Upwork after a long break so you need to select your membership under Settings> Membership & Connects and update your profile under Find Work> Profile to make sure it reflects your current skills and experience.
You will not be able to upload a resume to your account. Your profile itself serves as your resume for clients, you just need to create a 100% complete profile. You can edit your profile by going to Find Work > Profile.
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