To comply with GDPR, league administrators will no longer be able to edit a player’s details and will also have a restricted view of the personal details.
A document has been uploaded to the Help Guides https://playcricket.ecb.co.uk/hc/en-us/articles/360000851717-The-League-RegistrationProcess-post-GDPR-

As you may have seen from previous postings, we do require Players’ correct personal details to be added to their registrations, and we also need clubs to remove the registrations of players who have not played in both of the 2017 and 2018 seasons. Players, such as overseas players, that clubs know are not returning for the 2019 season should also be removed.
We shall start removing Players who do not have accurate details shortly. Club admins will be automatically informed and will need to resubmit the registration afresh, with all the relevant details. No registrations will now be accepted if details are not completed.