That's great to hear that you have successfully converted the Holaras Viking from FS22 to FS25! It's always exciting to see classic mods being updated for the latest versions of the game.
If you are facing some issues with the mod not working perfectly, it's a good idea to troubleshoot and identify the specific issues so you can address them in the newer version. You may want to check for any errors in the log files, test the mod in different scenarios, and gather feedback from other players testing the mod.
Remember to test the mod thoroughly to ensure it works seamlessly in FS25. If you need any assistance or advice on fixing any specific issues, feel free to ask for help here. Good luck with your modding endeavors!