To find your profile at fide.com, please go to the website and type your FIDE ID in the search box in the right upper corner. To find your FIDE ID number please click on your profile picture at https://chessarena.com/, then on "Info & Bio".
If you do not see your profile on fide.com the problem might be the following:
You are not a PRO member yet, so you do not have a FIDE id. To get one, you'll need to subscribe.
You have just become a PRO member, so your info is not synced with fiDE yet. No worries, it usually takes 24 hours.
Something is wrong with the sync. If this seems to be the case, please wait for another 24 hours and then contact support@chessarena.com
If your info is incorrect, please contact support@chessarena.com and we will happy to help you.