i am new into OBBLM and just installed it on my web Server. It is working right now but i have the following problem - i am not completly dumb regarding php so editing files if needed is no problem for me when anybody tells me exactly what to edit and where

1)
I entered a league and 2 divisions of it. But somehow obblm wants me to define a Tournament to Change league Settings etc. in front end. If not i am getting error Messages when changeing League Information ("Oh Noes...")
I googled a bit and someone on GitHub (https://github.com/TheNAF/naflm/issues/185) said that this may occur when not using the Right order from the NAF-Document when installing (which i did - i just did it Point by Point). After doing the suggested things there the errors disappear but i have a Tournament lurking around which i don't want in OBBLM (since i am running a league there)
Is there a way to solve that for me?
2) How do i add bb2016 data (mainly Star Players and Positionals) to OBBLM. I tried the file from this Forum but this gives me errors (Halflings not defined somewhere) Isn't there a simple data_lbr6.php file somewhere which i could easily replace? After doing a bit of research i read that i have to change the header.php? A step-by-step solution would be highly appreciated (can't find it anywhere)