Missing information in my contacts notes field

Contacts are synced to an email account that you had Google, iCloud, AOL, Exchange, Outlook, Yahoo or any Other

Log into a web browser and check on the email account that you have problem with. See the pic below for Notes on Gmail Contacts for example

Which email account are you referring to? Google, iCloud, AOL, Exchange, Outlook, Yahoo or any Other (Refer to the pic )below

1. Is this your corporate iPhone? Then please contact the system administrator of your corporate
2. If it is your personal device, in that case, do you have any profile installed by your corporate/organisation/enterprise/School Management?
   1. Erase the profile added by you If you have installed a profile on your own --> Install or remove configuration profiles on iPhone - Apple ...
   2. Or please contact the system administrator of the organisation who provided the profile to you

Since you have not posted the difficulty faced by you I am giving below the search process.

Please see the pic below which is self-explanatory. This shows search of keywords ("inclu" and "arro")