I've very embarrassed.
At some point in my editing/bug fixing frenzy, I seem to have changed the original OXP identifier for this pack. What this means is that, if you had version 1.2 installed via the download manager, this version wouldn't have updated it, meaning you would end up with 2 versions of Tionisla Reporter installed. I'm even more embarrassed because the change I've introduced changed Eric's surname. So, my apologies to Eric for misspelling his surname in the pack identifier, and also to everyone who now has two versions of Tionisla Reporter installed in their Managed AddOns folder.
I've just uploaded a small update, to version 1.3.6, which corrects the identifier. This version should now successfully update the old version. Unfortunately, I can't magic away the other copy. You'll need to manually uninstall this one.
Hopefully everything will be obvious once you enter the download manager and find the entries for Tionisla Reporter. There should be a a v1.3.5 as a separate item, along with v1.2.0 (the old version) that should be indicating an update is available. Let me know if there are any issues and I'll do my best to help. And apologies once again for my carelessness.