Share survey
I would like to inform you that as that survey has already been shared with you, means you are not the owner of that survey. The share survey option can be used successfully by the survey owner only. So, as you are not the survey owner for that survey you do not have permission to share that survey again. This is the reason why you are not able to share that survey again.
Can I not edit the survey layout of a shared survey even if I have the edit access?