I have a few questions regarding your reply...
I managed to obtain a legacy (0.29 - 4.5/6 beta) version of aiDPS from website snapshots https://web.archive.org/web/20140814100154/http://aioninfo.com/dpsmeter.html. I'm unable to pinpoint why exactly it isn't working, I assume it has to do with the frost protection, but it might be something else entirely.
One of possible reasons could be the lack of NA localization. AFAIK aiDPS started distributing that with 0.32 and 0.33, unfortunately those were uploaded to mega (being old and relatively less popular files they are now "corrupt" AKA mega deleted them to free up space). Would you mind checking which version you have, and if it's one of the aforementioned two, sharing a copy of the files (ofc assuming the files are in an "aiDPS" folder and not bundled in as resources in your "different launcher").
Another thing, altho more of a long shot, could be a missing entry for EuroAION in the serverlist.txt file in the aiDPS directory (assuming you can share a copy of your "aiDPS" we can confirm or deny this one also).
Lastly, if it is related to the way frost protection interacts with the functionalities of Npcap and aiDPS itself, would you mind asking the board to have the game launcher modified to allow/include it. aiDPS is unique in the way it works compared to other damage meter solutions, as it both, has virtually no impact on computer performance while also providing the only accurate damage breakdown (all damage correctly attributed to respective sources without missing skills).