Our service only covers the installation of KODI app itself, the service fee is paid for the Apple Developer program certificate and the signing facility and support we provide.
Any Add-On, Repo, and Custom Builds are not covered by our service, and we do not provide any support for those. Due to potential Copyright risk, we will not help you with any issues related to Add-Ons and Custom Builds either.
We suggest you seek for support from the official website or forum of that Add-On or Build, they will certainly be able to help you.
Thanks for your understanding.