Hello,
I updated your plugin but after update I don’t know from where plugin reading icons for plugin icon. Icons not existing in catalog /…/custom_field_data_icons/images/ like it was in pervious version. Now I cant add my own icons.
Thank you in advanced!

If you are having problems when upgrading from 1.1.3, then just delete the plugin from your Plugin folder and install it again. All the settings will remain.

https://www.ads-software.com/plugins/custom-field-data-icons/