Icons for Jira - not working after upgrading to Jira 8.12

My Client has upgraded Jira to 8.12
Icons For Jira ( CodeBarrel) has stop functioning (incompatibility, even though on the release noted mention it is compatible)
Could you offer a solution?
maybe a query for extracting data from DB:
for ex. Jira key -------- Icons field value.
That will help us to restore the data into a regular single select field.
Thank you !