Here is the identical problem solved by adjusting FTP it seems:
https://wpgeodirectory.com/support/topic/address-website-etc-details-wont-save/
And someone else with a similar problem:
https://wpgeodirectory.com/support/topic/details-of-listing-not-saving/
If you can explain how you solved the problem via FTP for that first link I can try myself. I think more of these solutions should be made public rather than kept in private posts so that others can learn them. If there is sensitive info then a followup reply explaining the solution would help limit the number of support tickets for duplicate topics that have already been addressed.