PocketDay version 3 adds the ability to accept new PocketDay plug-ins to the pro version. There's no difference for the personal version. Upgrades are still free. Plug-ins may require an additional cost, but are optional.
just download 3.0 and find out. If 2.8 ISN'T working why would you spend anymore time trying to fix 2.8 when 3.0 is already released and may fix your problem?
Even if it doesn't fix the problem, why wouldn't you want 3.0?