A quick rummage on Google reveals a couple of things: The forum software requires a plug-in(additional software at the server end) to work with Tapatalk.
TapaTalk currently only works with phpBB3 3.0.x, vBulletin 3.6.x/3.7.x/3.8.x/4.x, xenForo 1.0.X, Invision Power Board (IPB) 3.x, Simple Machine Forum (SMF) 1.1.11+/2.x, MyBB 1.4/1.6 and Kunena 1.5/1.6.
This forum runs on "Snitz" - so I doubt it will to work with Tapatalk.
There were problems with database & links to it over the past couple of days. It could have been just that? Perhaps give it another go? If 'no-go' then let us know again and we'll have a look into it further. Cheers. G.